131596985 has 32 divisors (see below), whose sum is σ = 175633920. Its totient is φ = 94042368.

The previous prime is 131596973. The next prime is 131596987. The reversal of 131596985 is 589695131.

It is a cyclic number.

It is not a de Polignac number, because 131596985 - 2¹² = 131592889 is a prime.

It is a super-2 number, since 2×131596985² = 34635532922180450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (131596987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550496 + ... + 550734.

It is an arithmetic number, because the mean of its divisors is an integer number (5488560).

Almost surely, 2^131596985 is an apocalyptic number.

It is an amenable number.

131596985 is a deficient number, since it is larger than the sum of its proper divisors (44036935).

131596985 is a wasteful number, since it uses less digits than its factorization.

131596985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497.

The product of its digits is 291600, while the sum is 47.

The square root of 131596985 is about 11471.5729087166. The cubic root of 131596985 is about 508.6456247030.

The spelling of 131596985 in words is "one hundred thirty-one million, five hundred ninety-six thousand, nine hundred eighty-five".