131153831 has 4 divisors (see below), whose sum is σ = 131381712. Its totient is φ = 130925952.

The previous prime is 131153821. The next prime is 131153849. The reversal of 131153831 is 138351131.

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

It is a cyclic number.

It is not a de Polignac number, because 131153831 - 2⁶ = 131153767 is a prime.

It is a super-2 number, since 2×131153831² = 34402654771953122, 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 131153831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131153801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113075 + ... + 114228.

It is an arithmetic number, because the mean of its divisors is an integer number (32845428).

Almost surely, 2^131153831 is an apocalyptic number.

131153831 is a deficient number, since it is larger than the sum of its proper divisors (227881).

131153831 is an equidigital number, since it uses as much as digits as its factorization.

131153831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227880.

The product of its digits is 1080, while the sum is 26.

The square root of 131153831 is about 11452.2413090189. The cubic root of 131153831 is about 508.0740264020.

The spelling of 131153831 in words is "one hundred thirty-one million, one hundred fifty-three thousand, eight hundred thirty-one".