131522204 has 12 divisors (see below), whose sum is σ = 251087928. Its totient is φ = 59782800.

The previous prime is 131522191. The next prime is 131522213. The reversal of 131522204 is 402225131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1494527 + ... + 1494614.

It is an arithmetic number, because the mean of its divisors is an integer number (20923994).

Almost surely, 2^131522204 is an apocalyptic number.

It is an amenable number.

131522204 is a deficient number, since it is larger than the sum of its proper divisors (119565724).

131522204 is a wasteful number, since it uses less digits than its factorization.

131522204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989156 (or 2989154 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 131522204 is about 11468.3130407222. The cubic root of 131522204 is about 508.5492591829.

Adding to 131522204 its reverse (402225131), we get a palindrome (533747335).

The spelling of 131522204 in words is "one hundred thirty-one million, five hundred twenty-two thousand, two hundred four".