129944706 has 16 divisors (see below), whose sum is σ = 261760800. Its totient is φ = 43003008.

The previous prime is 129944693. The next prime is 129944713. The reversal of 129944706 is 607449921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77071 + ... + 78738.

It is an arithmetic number, because the mean of its divisors is an integer number (16360050).

Almost surely, 2^129944706 is an apocalyptic number.

129944706 is an abundant number, since it is smaller than the sum of its proper divisors (131816094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129944706 is a wasteful number, since it uses less digits than its factorization.

129944706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155953.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 129944706 is about 11399.3291907901. The cubic root of 129944706 is about 506.5078691144.

The spelling of 129944706 in words is "one hundred twenty-nine million, nine hundred forty-four thousand, seven hundred six".