Happy number ‘rules’

There are certain properties of happy numbers which stand for all happy numbers.

  1. Rearranging the digits in any number will not affect it being happy or not
  2. Multiplying any number by 10^n (when n>=0) will not affect it being happy or not
  3. Inserting any digit (excluding 0) into the middle or either end of a number will affect it being happy or not
  4. Inserting 0 into the middle or either end of a number will not affect it being happy or not
  5. Multiplying or Dividing by any number will affect it being happy or not
  6. Addition or Subtraction will also affect it being happy or not