129073996 has 24 divisors (see below), whose sum is σ = 240510816. Its totient is φ = 60399360.

The previous prime is 129073991. The next prime is 129074021. The reversal of 129073996 is 699370921.

It is not an unprimeable number, because it can be changed into a prime (129073991) 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 in 7 ways as a sum of consecutive naturals, for example, 7065 + ... + 17551.

It is an arithmetic number, because the mean of its divisors is an integer number (10021284).

Almost surely, 2^129073996 is an apocalyptic number.

It is an amenable number.

129073996 is a deficient number, since it is larger than the sum of its proper divisors (111436820).

129073996 is a wasteful number, since it uses less digits than its factorization.

129073996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10689 (or 10687 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 129073996 is about 11361.0737168632. The cubic root of 129073996 is about 505.3740273888.

The spelling of 129073996 in words is "one hundred twenty-nine million, seventy-three thousand, nine hundred ninety-six".