129573772 has 12 divisors (see below), whose sum is σ = 227592736. Its totient is φ = 64547280.

The previous prime is 129573761. The next prime is 129573781. The reversal of 129573772 is 277375921.

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, 58683 + ... + 60850.

Almost surely, 2^129573772 is an apocalyptic number.

It is an amenable number.

129573772 is a deficient number, since it is larger than the sum of its proper divisors (98018964).

129573772 is a wasteful number, since it uses less digits than its factorization.

129573772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119808 (or 119806 counting only the distinct ones).

The product of its digits is 185220, while the sum is 43.

The square root of 129573772 is about 11383.0475708397. The cubic root of 129573772 is about 506.0254586804.

The spelling of 129573772 in words is "one hundred twenty-nine million, five hundred seventy-three thousand, seven hundred seventy-two".