129070904 has 8 divisors (see below), whose sum is σ = 242007960. Its totient is φ = 64535448.

The previous prime is 129070891. The next prime is 129070913. The reversal of 129070904 is 409070921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8066924 + ... + 8066939.

It is an arithmetic number, because the mean of its divisors is an integer number (30250995).

Almost surely, 2^129070904 is an apocalyptic number.

It is an amenable number.

129070904 is a deficient number, since it is larger than the sum of its proper divisors (112937056).

129070904 is a wasteful number, since it uses less digits than its factorization.

129070904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16133869 (or 16133865 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 129070904 is about 11360.9376373607. The cubic root of 129070904 is about 505.3699919027.

The spelling of 129070904 in words is "one hundred twenty-nine million, seventy thousand, nine hundred four".