129670316 has 12 divisors (see below), whose sum is σ = 227186232. Its totient is φ = 64759968.

The previous prime is 129670313. The next prime is 129670337. The reversal of 129670316 is 613076921.

It is not an unprimeable number, because it can be changed into a prime (129670313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14825 + ... + 21888.

It is an arithmetic number, because the mean of its divisors is an integer number (18932186).

Almost surely, 2^129670316 is an apocalyptic number.

It is an amenable number.

129670316 is a deficient number, since it is larger than the sum of its proper divisors (97515916).

129670316 is a wasteful number, since it uses less digits than its factorization.

129670316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37600 (or 37598 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 129670316 is about 11387.2874733187. The cubic root of 129670316 is about 506.1511054907.

The spelling of 129670316 in words is "one hundred twenty-nine million, six hundred seventy thousand, three hundred sixteen".