131535660 has 24 divisors (see below), whose sum is σ = 368300016. Its totient is φ = 35076160.

The previous prime is 131535623. The next prime is 131535671. The reversal of 131535660 is 66535131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096071 + ... + 1096190.

It is an arithmetic number, because the mean of its divisors is an integer number (15345834).

Almost surely, 2^131535660 is an apocalyptic number.

131535660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131535660 is an abundant number, since it is smaller than the sum of its proper divisors (236764356).

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

131535660 is a wasteful number, since it uses less digits than its factorization.

131535660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192273 (or 2192271 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 131535660 is about 11468.8996856717. The cubic root of 131535660 is about 508.5666017691.

The spelling of 131535660 in words is "one hundred thirty-one million, five hundred thirty-five thousand, six hundred sixty".