129883916 has 24 divisors (see below), whose sum is σ = 230608896. Its totient is φ = 64002960.

The previous prime is 129883909. The next prime is 129883931. The reversal of 129883916 is 619388921.

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, 84071 + ... + 85601.

It is an arithmetic number, because the mean of its divisors is an integer number (9608704).

Almost surely, 2^129883916 is an apocalyptic number.

It is an amenable number.

129883916 is a deficient number, since it is larger than the sum of its proper divisors (100724980).

129883916 is a wasteful number, since it uses less digits than its factorization.

129883916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1827 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 129883916 is about 11396.6624939058. The cubic root of 129883916 is about 506.4288729090.

The spelling of 129883916 in words is "one hundred twenty-nine million, eight hundred eighty-three thousand, nine hundred sixteen".