131456757 has 4 divisors (see below), whose sum is σ = 175275680. Its totient is φ = 87637836.

The previous prime is 131456749. The next prime is 131456777. The reversal of 131456757 is 757654131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131456757 - 2³ = 131456749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131456777) 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, 21909457 + ... + 21909462.

It is an arithmetic number, because the mean of its divisors is an integer number (43818920).

Almost surely, 2^131456757 is an apocalyptic number.

It is an amenable number.

131456757 is a deficient number, since it is larger than the sum of its proper divisors (43818923).

131456757 is an equidigital number, since it uses as much as digits as its factorization.

131456757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43818922.

The product of its digits is 88200, while the sum is 39.

The square root of 131456757 is about 11465.4593017463. The cubic root of 131456757 is about 508.4648918175.

The spelling of 131456757 in words is "one hundred thirty-one million, four hundred fifty-six thousand, seven hundred fifty-seven".