131175872 has 28 divisors (see below), whose sum is σ = 265846560. Its totient is φ = 64190976.

The previous prime is 131175833. The next prime is 131175931. The reversal of 131175872 is 278571131.

It is a happy number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 18797 + ... + 24812.

It is an arithmetic number, because the mean of its divisors is an integer number (9494520).

Almost surely, 2^131175872 is an apocalyptic number.

It is an amenable number.

131175872 is an abundant number, since it is smaller than the sum of its proper divisors (134670688).

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

131175872 is an equidigital number, since it uses as much as digits as its factorization.

131175872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43668 (or 43658 counting only the distinct ones).

The product of its digits is 11760, while the sum is 35.

The square root of 131175872 is about 11453.2035693076. The cubic root of 131175872 is about 508.1024861943.

The spelling of 131175872 in words is "one hundred thirty-one million, one hundred seventy-five thousand, eight hundred seventy-two".