10256931 has 12 divisors (see below), whose sum is σ = 15095808. Its totient is φ = 6708624.

The previous prime is 10256861. The next prime is 10256947. The reversal of 10256931 is 13965201.

It is not a de Polignac number, because 10256931 - 2⁹ = 10256419 is a prime.

It is a super-2 number, since 2×10256931² = 210409267077522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10256895 and 10256904.

It is not an unprimeable number, because it can be changed into a prime (10256131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10275 + ... + 11228.

It is an arithmetic number, because the mean of its divisors is an integer number (1257984).

Almost surely, 2^10256931 is an apocalyptic number.

10256931 is a deficient number, since it is larger than the sum of its proper divisors (4838877).

10256931 is a wasteful number, since it uses less digits than its factorization.

10256931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21562 (or 21559 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 10256931 is about 3202.6443761367. The cubic root of 10256931 is about 217.2730252098.

The spelling of 10256931 in words is "ten million, two hundred fifty-six thousand, nine hundred thirty-one".