129288794 has 16 divisors (see below), whose sum is σ = 196079616. Its totient is φ = 63932400.

The previous prime is 129288769. The next prime is 129288821. The reversal of 129288794 is 497882921.

129288794 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 108884 + ... + 110064.

It is an arithmetic number, because the mean of its divisors is an integer number (12254976).

Almost surely, 2^129288794 is an apocalyptic number.

129288794 is a deficient number, since it is larger than the sum of its proper divisors (66790822).

129288794 is a wasteful number, since it uses less digits than its factorization.

129288794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741.

The product of its digits is 580608, while the sum is 50.

The square root of 129288794 is about 11370.5230310659. The cubic root of 129288794 is about 505.6542107800.

The spelling of 129288794 in words is "one hundred twenty-nine million, two hundred eighty-eight thousand, seven hundred ninety-four".