129659072 has 14 divisors (see below), whose sum is σ = 257292348. Its totient is φ = 64829504.

The previous prime is 129659039. The next prime is 129659083. The reversal of 129659072 is 270956921.

It is a super-2 number, since 2×129659072² = 33622949903802368, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012898 + ... + 1013025.

Almost surely, 2^129659072 is an apocalyptic number.

It is an amenable number.

129659072 is a deficient number, since it is larger than the sum of its proper divisors (127633276).

129659072 is an equidigital number, since it uses as much as digits as its factorization.

129659072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025935 (or 2025925 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 129659072 is about 11386.7937541698. The cubic root of 129659072 is about 506.1364752404.

The spelling of 129659072 in words is "one hundred twenty-nine million, six hundred fifty-nine thousand, seventy-two".