129910902 has 32 divisors (see below), whose sum is σ = 285966720. Its totient is φ = 39016320.

The previous prime is 129910883. The next prime is 129910903. The reversal of 129910902 is 209019921.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129910903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1252 + ... + 16167.

It is an arithmetic number, because the mean of its divisors is an integer number (8936460).

Almost surely, 2^129910902 is an apocalyptic number.

129910902 is an abundant number, since it is smaller than the sum of its proper divisors (156055818).

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

129910902 is a wasteful number, since it uses less digits than its factorization.

129910902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17548.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 129910902 is about 11397.8463755220. The cubic root of 129910902 is about 506.4639440802.

The spelling of 129910902 in words is "one hundred twenty-nine million, nine hundred ten thousand, nine hundred two".