129319696 has 20 divisors (see below), whose sum is σ = 273335184. Its totient is φ = 58781600.

The previous prime is 129319679. The next prime is 129319703. The reversal of 129319696 is 696913921.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367210 + ... + 367561.

Almost surely, 2^129319696 is an apocalyptic number.

129319696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129319696 is an abundant number, since it is smaller than the sum of its proper divisors (144015488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129319696 is a wasteful number, since it uses less digits than its factorization.

129319696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734790 (or 734784 counting only the distinct ones).

The product of its digits is 157464, while the sum is 46.

The square root of 129319696 is about 11371.8818143700. The cubic root of 129319696 is about 505.6944939352.

The spelling of 129319696 in words is "one hundred twenty-nine million, three hundred nineteen thousand, six hundred ninety-six".