129234992 has 10 divisors (see below), whose sum is σ = 250392828. Its totient is φ = 64617488.

The previous prime is 129234983. The next prime is 129235033. The reversal of 129234992 is 299432921.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4038578 + ... + 4038609.

Almost surely, 2^129234992 is an apocalyptic number.

It is an amenable number.

129234992 is a deficient number, since it is larger than the sum of its proper divisors (121157836).

129234992 is an equidigital number, since it uses as much as digits as its factorization.

129234992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8077195 (or 8077189 counting only the distinct ones).

The product of its digits is 69984, while the sum is 41.

The square root of 129234992 is about 11368.1569306550. The cubic root of 129234992 is about 505.5840603785.

The spelling of 129234992 in words is "one hundred twenty-nine million, two hundred thirty-four thousand, nine hundred ninety-two".