131312574 has 12 divisors (see below), whose sum is σ = 284510616. Its totient is φ = 43770852.

The previous prime is 131312567. The next prime is 131312603. The reversal of 131312574 is 475213131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3647554 + ... + 3647589.

It is an arithmetic number, because the mean of its divisors is an integer number (23709218).

Almost surely, 2^131312574 is an apocalyptic number.

131312574 is an abundant number, since it is smaller than the sum of its proper divisors (153198042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131312574 is a wasteful number, since it uses less digits than its factorization.

131312574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7295151 (or 7295148 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 131312574 is about 11459.1698652215. The cubic root of 131312574 is about 508.2789274628.

The spelling of 131312574 in words is "one hundred thirty-one million, three hundred twelve thousand, five hundred seventy-four".