131626624 has 16 divisors (see below), whose sum is σ = 262225170. Its totient is φ = 65813248.

The previous prime is 131626609. The next prime is 131626633. The reversal of 131626624 is 426626131.

It can be written as a sum of positive squares in only one way, i.e., 97614400 + 34012224 = 9880^2 + 5832^2 .

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 514039 + ... + 514294.

Almost surely, 2^131626624 is an apocalyptic number.

It is an amenable number.

131626624 is a deficient number, since it is larger than the sum of its proper divisors (130598546).

131626624 is an equidigital number, since it uses as much as digits as its factorization.

131626624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028347 (or 1028335 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 131626624 is about 11472.8646814996. The cubic root of 131626624 is about 508.6838084957.

The spelling of 131626624 in words is "one hundred thirty-one million, six hundred twenty-six thousand, six hundred twenty-four".