131585316 has 24 divisors (see below), whose sum is σ = 307218240. Its totient is φ = 43835232.

The previous prime is 131585299. The next prime is 131585329. The reversal of 131585316 is 613585131.

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, 35545 + ... + 39071.

It is an arithmetic number, because the mean of its divisors is an integer number (12800760).

Almost surely, 2^131585316 is an apocalyptic number.

It is an amenable number.

131585316 is an abundant number, since it is smaller than the sum of its proper divisors (175632924).

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

131585316 is a wasteful number, since it uses less digits than its factorization.

131585316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6643 (or 6641 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 131585316 is about 11471.0642923837. The cubic root of 131585316 is about 508.6305900089.

The spelling of 131585316 in words is "one hundred thirty-one million, five hundred eighty-five thousand, three hundred sixteen".