131645072 has 40 divisors (see below), whose sum is σ = 289148160. Its totient is φ = 57559680.

The previous prime is 131645069. The next prime is 131645083. The reversal of 131645072 is 270546131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12704 + ... + 20607.

It is an arithmetic number, because the mean of its divisors is an integer number (7228704).

Almost surely, 2^131645072 is an apocalyptic number.

It is an amenable number.

131645072 is an abundant number, since it is smaller than the sum of its proper divisors (157503088).

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

131645072 is a wasteful number, since it uses less digits than its factorization.

131645072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33351 (or 33345 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 131645072 is about 11473.6686373627. The cubic root of 131645072 is about 508.7075720785.

The spelling of 131645072 in words is "one hundred thirty-one million, six hundred forty-five thousand, seventy-two".