131585872 has 20 divisors (see below), whose sum is σ = 278125056. Its totient is φ = 59811680.

The previous prime is 131585869. The next prime is 131585893. The reversal of 131585872 is 278585131.

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 3 ways as a sum of consecutive naturals, for example, 373648 + ... + 373999.

Almost surely, 2^131585872 is an apocalyptic number.

It is an amenable number.

131585872 is an abundant number, since it is smaller than the sum of its proper divisors (146539184).

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

131585872 is a wasteful number, since it uses less digits than its factorization.

131585872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747666 (or 747660 counting only the distinct ones).

The product of its digits is 67200, while the sum is 40.

The square root of 131585872 is about 11471.0885272497. The cubic root of 131585872 is about 508.6313063963.

The spelling of 131585872 in words is "one hundred thirty-one million, five hundred eighty-five thousand, eight hundred seventy-two".