Your number, one digit away
One digit away
One change could reach Singular.
Your number
2,175
Exceptional · Top 1.34%
Position 3: 7 → 4 · +400 points.
Gained: Triangular number, Binary palindrome, Digit sum 12, Alternating parity.
Lost: Digit sum 15, Zigzag digits, Harshad number, Happy number.
35 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.