131318056 has 16 divisors (see below), whose sum is σ = 247854240. Its totient is φ = 65223600.

The previous prime is 131317993. The next prime is 131318093. The reversal of 131318056 is 650813131.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 53146 + ... + 55561.

It is an arithmetic number, because the mean of its divisors is an integer number (15490890).

Almost surely, 2^131318056 is an apocalyptic number.

It is an amenable number.

131318056 is a deficient number, since it is larger than the sum of its proper divisors (116536184).

131318056 is a wasteful number, since it uses less digits than its factorization.

131318056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108864 (or 108860 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 131318056 is about 11459.4090598076. The cubic root of 131318056 is about 508.2860005258.

The spelling of 131318056 in words is "one hundred thirty-one million, three hundred eighteen thousand, fifty-six".