129930904 has 16 divisors (see below), whose sum is σ = 252021600. Its totient is φ = 62725152.

The previous prime is 129930901. The next prime is 129930929. The reversal of 129930904 is 409039921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129930901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279792 + ... + 280255.

It is an arithmetic number, because the mean of its divisors is an integer number (15751350).

Almost surely, 2^129930904 is an apocalyptic number.

It is an amenable number.

129930904 is a deficient number, since it is larger than the sum of its proper divisors (122090696).

129930904 is a wasteful number, since it uses less digits than its factorization.

129930904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560082 (or 560078 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 129930904 is about 11398.7237882142. The cubic root of 129930904 is about 506.4899356683.

The spelling of 129930904 in words is "one hundred twenty-nine million, nine hundred thirty thousand, nine hundred four".