131570154 has 24 divisors (see below), whose sum is σ = 285518532. Its totient is φ = 43787520.

The previous prime is 131570149. The next prime is 131570161. The reversal of 131570154 is 451075131.

It can be written as a sum of positive squares in 2 ways, for example, as 128936025 + 2634129 = 11355^2 + 1623^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6684 + ... + 17544.

Almost surely, 2^131570154 is an apocalyptic number.

131570154 is an abundant number, since it is smaller than the sum of its proper divisors (153948378).

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

131570154 is a wasteful number, since it uses less digits than its factorization.

131570154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11542 (or 11539 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 131570154 is about 11470.4033930808. The cubic root of 131570154 is about 508.6110534996.

The spelling of 131570154 in words is "one hundred thirty-one million, five hundred seventy thousand, one hundred fifty-four".