Your number, one digit away

One digit away

One change could reach Extreme.

Position 3: 5 → 3 · +150 points.

Gained: Triangular number, Digit sum 18, Descending segment, 5 distinct digits, Harshad number, Repeated digit.

Lost: Ascending segment, Digit sum 20, 6 distinct digits, Semiprime.

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