129797502 has 8 divisors (see below), whose sum is σ = 259595016. Its totient is φ = 43265832.

The previous prime is 129797489. The next prime is 129797519. The reversal of 129797502 is 205797921.

It is a sphenic number, since it is the product of 3 distinct primes.

129797502 is an admirable number.

It is a congruent number.

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, 10816453 + ... + 10816464.

It is an arithmetic number, because the mean of its divisors is an integer number (32449377).

Almost surely, 2^129797502 is an apocalyptic number.

129797502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129797502 is a wasteful number, since it uses less digits than its factorization.

129797502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21632922.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 129797502 is about 11392.8706654644. The cubic root of 129797502 is about 506.3165360498.

The spelling of 129797502 in words is "one hundred twenty-nine million, seven hundred ninety-seven thousand, five hundred two".