129308876 has 6 divisors (see below), whose sum is σ = 226290540. Its totient is φ = 64654436.

The previous prime is 129308873. The next prime is 129308897. The reversal of 129308876 is 678803921.

It is not an unprimeable number, because it can be changed into a prime (129308873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16163606 + ... + 16163613.

It is an arithmetic number, because the mean of its divisors is an integer number (37715090).

Almost surely, 2^129308876 is an apocalyptic number.

It is an amenable number.

129308876 is a deficient number, since it is larger than the sum of its proper divisors (96981664).

129308876 is a wasteful number, since it uses less digits than its factorization.

129308876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32327223 (or 32327221 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 129308876 is about 11371.4060696116. The cubic root of 129308876 is about 505.6803899557.

The spelling of 129308876 in words is "one hundred twenty-nine million, three hundred eight thousand, eight hundred seventy-six".