131920974 has 20 divisors (see below), whose sum is σ = 295601064. Its totient is φ = 43973604.

The previous prime is 131920961. The next prime is 131920981. The reversal of 131920974 is 479029131.

It is a super-2 number, since 2×131920974² = 34806286762217352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 407002 + ... + 407325.

Almost surely, 2^131920974 is an apocalyptic number.

131920974 is an abundant number, since it is smaller than the sum of its proper divisors (163680090).

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

131920974 is an equidigital number, since it uses as much as digits as its factorization.

131920974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814341 (or 814332 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 131920974 is about 11485.6856129706. The cubic root of 131920974 is about 509.0627075384.

The spelling of 131920974 in words is "one hundred thirty-one million, nine hundred twenty thousand, nine hundred seventy-four".