Your number, one digit away

One digit away

One change could reach Extreme.

Position 1: 8 → 1 · +132 points.

Gained: Palindrome, Digit sum 21, 3 distinct digits, Zigzag digits, Semiprime, Double pair.

Lost: Triangular number, Digit sum 28, 4 distinct digits, Happy number, Repeated digit.

44 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.