129369904 has 10 divisors (see below), whose sum is σ = 250654220. Its totient is φ = 64684944.

The previous prime is 129369893. The next prime is 129369907. The reversal of 129369904 is 409963921.

It is not an unprimeable number, because it can be changed into a prime (129369907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4042794 + ... + 4042825.

It is an arithmetic number, because the mean of its divisors is an integer number (25065422).

Almost surely, 2^129369904 is an apocalyptic number.

It is an amenable number.

129369904 is a deficient number, since it is larger than the sum of its proper divisors (121284316).

129369904 is an equidigital number, since it uses as much as digits as its factorization.

129369904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8085627 (or 8085621 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 129369904 is about 11374.0891503452. The cubic root of 129369904 is about 505.7599302783.

The spelling of 129369904 in words is "one hundred twenty-nine million, three hundred sixty-nine thousand, nine hundred four".