129088996 has 12 divisors (see below), whose sum is σ = 227259648. Its totient is φ = 64157672.

The previous prime is 129088979. The next prime is 129089003. The reversal of 129088996 is 699880921.

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 3 ways as a sum of consecutive naturals, for example, 95956 + ... + 97291.

It is an arithmetic number, because the mean of its divisors is an integer number (18938304).

Almost surely, 2^129088996 is an apocalyptic number.

It is an amenable number.

129088996 is a deficient number, since it is larger than the sum of its proper divisors (98170652).

129088996 is a wasteful number, since it uses less digits than its factorization.

129088996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193418 (or 193416 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 52.

The square root of 129088996 is about 11361.7338465570. The cubic root of 129088996 is about 505.3936035415.

It can be divided in two parts, 12908 and 8996, that added together give a square (21904 = 148²).

The spelling of 129088996 in words is "one hundred twenty-nine million, eighty-eight thousand, nine hundred ninety-six".