131555204 has 24 divisors (see below), whose sum is σ = 251748000. Its totient is φ = 59655680.

The previous prime is 131555161. The next prime is 131555213. The reversal of 131555204 is 402555131.

131555204 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16427 + ... + 23085.

It is an arithmetic number, because the mean of its divisors is an integer number (10489500).

Almost surely, 2^131555204 is an apocalyptic number.

It is an amenable number.

131555204 is a deficient number, since it is larger than the sum of its proper divisors (120192796).

131555204 is a wasteful number, since it uses less digits than its factorization.

131555204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7123 (or 7121 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 131555204 is about 11469.7516973996. The cubic root of 131555204 is about 508.5917886866.

The spelling of 131555204 in words is "one hundred thirty-one million, five hundred fifty-five thousand, two hundred four".