A name whose Chaldean letters total ૧ is received under સૂર્ય. The name number describes reception rather than character — how a room adjusts to your name before it has met you.
Ruling graha
સૂર્ય
Day
રવિવાર
As your Name number
A name totalling 1 is received as authoritative before the person has spoken. It helps in leadership and business, and works against you where the room needs to feel consulted.
What the Name number is
Your name number is the Chaldean value of the name you actually go by, reduced to a single digit. It is not what you were born with — it is what you have been called since, which is why it describes reception rather than character: how a room adjusts to your name before it has met you. Change the name you use and this number changes with it.
The character of ૧
One belongs to the Sun: the number of the person who would rather lead badly than follow well. It carries authority, a clear sense of self, and the assumption — usually correct — that if something is going to be done properly they will have to do it.
Strengths
Initiative, resolve, an unusual tolerance for being the one held responsible.
Challenges
Pride, difficulty taking instruction, and a habit of mistaking stubbornness for principle.
Which numbers suit it
Number compatibility here is graha maitri — the natural friendship of the planets that rule the two numbers, from the same classical table this site uses to score Guna Milan in kundli matching. It is not a separate numerological lore invented for the purpose.
૨, ૩, ૯ — because the grahas ruling those numbers are natural friends of the graha ruling ૧. This is the same friendship table used to score Guna Milan in kundli matching.
Does changing my name change my number?
The name number, yes — it is computed from the name you actually go by, so it moves when that changes. The mulank and bhagyank come from your birth date and do not move at all.