129610992 has 80 divisors (see below), whose sum is σ = 405188352. Its totient is φ = 34851840.

The previous prime is 129610991. The next prime is 129611017. The reversal of 129610992 is 299016921.

It is a self number, because there is not a number n which added to its sum of digits gives 129610992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129610991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5634 + ... + 17057.

Almost surely, 2^129610992 is an apocalyptic number.

129610992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129610992 is an abundant number, since it is smaller than the sum of its proper divisors (275577360).

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

129610992 is a wasteful number, since it uses less digits than its factorization.

129610992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22726 (or 22720 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 129610992 is about 11384.6823407594. The cubic root of 129610992 is about 506.0739058936.

The spelling of 129610992 in words is "one hundred twenty-nine million, six hundred ten thousand, nine hundred ninety-two".