10857131 has 4 divisors (see below), whose sum is σ = 10890264. Its totient is φ = 10824000.

The previous prime is 10857097. The next prime is 10857137. The reversal of 10857131 is 13175801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10857131 is a prime.

It is a super-2 number, since 2×10857131² = 235754587102322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10857131.

It is not an unprimeable number, because it can be changed into a prime (10857137) 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 3 ways as a sum of consecutive naturals, for example, 16070 + ... + 16731.

It is an arithmetic number, because the mean of its divisors is an integer number (2722566).

Almost surely, 2^10857131 is an apocalyptic number.

10857131 is a deficient number, since it is larger than the sum of its proper divisors (33133).

10857131 is an equidigital number, since it uses as much as digits as its factorization.

10857131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33132.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 10857131 is about 3295.0160849380. The cubic root of 10857131 is about 221.4309683701.

The spelling of 10857131 in words is "ten million, eight hundred fifty-seven thousand, one hundred thirty-one".