131657076 has 30 divisors (see below), whose sum is σ = 344178450. Its totient is φ = 43885584.

The previous prime is 131657069. The next prime is 131657087. The reversal of 131657076 is 670756131.

131657076 is a `hidden beast` number, since 1 + 3 + 16 + 570 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 100520676 + 31136400 = 10026^2 + 5580^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 131657076.

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 9 ways as a sum of consecutive naturals, for example, 202851 + ... + 203498.

It is an arithmetic number, because the mean of its divisors is an integer number (11472615).

Almost surely, 2^131657076 is an apocalyptic number.

It is an amenable number.

131657076 is an abundant number, since it is smaller than the sum of its proper divisors (212521374).

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

131657076 is a wasteful number, since it uses less digits than its factorization.

131657076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406365 (or 406354 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 131657076 is about 11474.1917362401. The cubic root of 131657076 is about 508.7230337032.

The spelling of 131657076 in words is "one hundred thirty-one million, six hundred fifty-seven thousand, seventy-six".