129967708 has 24 divisors (see below), whose sum is σ = 247898448. Its totient is φ = 59260416.

The previous prime is 129967699. The next prime is 129967723. The reversal of 129967708 is 807769921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10741 + ... + 19372.

It is an arithmetic number, because the mean of its divisors is an integer number (10329102).

Almost surely, 2^129967708 is an apocalyptic number.

It is an amenable number.

129967708 is a deficient number, since it is larger than the sum of its proper divisors (117930740).

129967708 is a wasteful number, since it uses less digits than its factorization.

129967708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30213 (or 30211 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 129967708 is about 11400.3380651628. The cubic root of 129967708 is about 506.5377536373.

The spelling of 129967708 in words is "one hundred twenty-nine million, nine hundred sixty-seven thousand, seven hundred eight".