Your number, one digit away

One digit away

One change could reach Extreme.

Position 2: 5 → 1 · +308 points.

Gained: Palindrome, Only two distinct digits, Digit sum 21, 2 distinct digits, Harshad number, Adjacent digit run, Triple digit.

Lost: Digit sum 25, 3 distinct digits, Semiprime, Double pair.

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