Your number, one digit away

One digit away

One change could reach Extreme.

Position 6: 1 → 5 · +191 points.

Gained: Triangular number, Digit sum 39, Harshad number.

Lost: Digit sum 35, Semiprime.

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