10512891 has 12 divisors (see below), whose sum is σ = 15235480. Its totient is φ = 6985440.

The previous prime is 10512883. The next prime is 10512907. The reversal of 10512891 is 19821501.

It is not a de Polignac number, because 10512891 - 2³ = 10512883 is a prime.

It is a super-2 number, since 2×10512891² = 221041754355762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10512811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1215 + ... + 4743.

Almost surely, 2^10512891 is an apocalyptic number.

10512891 is a deficient number, since it is larger than the sum of its proper divisors (4722589).

10512891 is a wasteful number, since it uses less digits than its factorization.

10512891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866 (or 3863 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 10512891 is about 3242.3588635436. The cubic root of 10512891 is about 219.0655336498.

It can be divided in two parts, 105 and 12891, that added together give a square (12996 = 114²).

The spelling of 10512891 in words is "ten million, five hundred twelve thousand, eight hundred ninety-one".