131995056 has 40 divisors (see below), whose sum is σ = 341853120. Its totient is φ = 43886656.

The previous prime is 131995013. The next prime is 131995057. The reversal of 131995056 is 650599131.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (131995057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16831 + ... + 23393.

It is an arithmetic number, because the mean of its divisors is an integer number (8546328).

Almost surely, 2^131995056 is an apocalyptic number.

131995056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131995056 is an abundant number, since it is smaller than the sum of its proper divisors (209858064).

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

131995056 is a wasteful number, since it uses less digits than its factorization.

131995056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993 (or 6987 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 39.

The square root of 131995056 is about 11488.9101310786. The cubic root of 131995056 is about 509.1579800470.

The spelling of 131995056 in words is "one hundred thirty-one million, nine hundred ninety-five thousand, fifty-six".