131429904 has 20 divisors (see below), whose sum is σ = 339527376. Its totient is φ = 43809952.

The previous prime is 131429899. The next prime is 131429923. The reversal of 131429904 is 409924131.

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, 1369014 + ... + 1369109.

Almost surely, 2^131429904 is an apocalyptic number.

It is an amenable number.

131429904 is an abundant number, since it is smaller than the sum of its proper divisors (208097472).

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

131429904 is a wasteful number, since it uses less digits than its factorization.

131429904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738134 (or 2738128 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 131429904 is about 11464.2882029370. The cubic root of 131429904 is about 508.4302676621.

The spelling of 131429904 in words is "one hundred thirty-one million, four hundred twenty-nine thousand, nine hundred four".