129361696 has 24 divisors (see below), whose sum is σ = 254983680. Its totient is φ = 64603968.

The previous prime is 129361691. The next prime is 129361703. The reversal of 129361696 is 696163921.

It is not an unprimeable number, because it can be changed into a prime (129361691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32925 + ... + 36643.

It is an arithmetic number, because the mean of its divisors is an integer number (10624320).

Almost surely, 2^129361696 is an apocalyptic number.

129361696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129361696 is a deficient number, since it is larger than the sum of its proper divisors (125621984).

129361696 is a wasteful number, since it uses less digits than its factorization.

129361696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4816 (or 4808 counting only the distinct ones).

The product of its digits is 104976, while the sum is 43.

The square root of 129361696 is about 11373.7283245205. The cubic root of 129361696 is about 505.7492339078.

The spelling of 129361696 in words is "one hundred twenty-nine million, three hundred sixty-one thousand, six hundred ninety-six".