129345188 has 12 divisors (see below), whose sum is σ = 258690432. Its totient is φ = 55433640.

The previous prime is 129345157. The next prime is 129345253. The reversal of 129345188 is 881543921.

129345188 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309708 + ... + 2309763.

It is an arithmetic number, because the mean of its divisors is an integer number (21557536).

Almost surely, 2^129345188 is an apocalyptic number.

It is an amenable number.

129345188 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129345188 is a wasteful number, since it uses less digits than its factorization.

129345188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619482 (or 4619480 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 129345188 is about 11373.0025938624. The cubic root of 129345188 is about 505.7277199053.

The spelling of 129345188 in words is "one hundred twenty-nine million, three hundred forty-five thousand, one hundred eighty-eight".