129716076 has 48 divisors (see below), whose sum is σ = 349816320. Its totient is φ = 36643200.

The previous prime is 129716057. The next prime is 129716089. The reversal of 129716076 is 670617921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1200 + ... + 16151.

It is an arithmetic number, because the mean of its divisors is an integer number (7287840).

Almost surely, 2^129716076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129716076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174908160).

129716076 is an abundant number, since it is smaller than the sum of its proper divisors (220100244).

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

129716076 is a wasteful number, since it uses less digits than its factorization.

129716076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17454 (or 17452 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 129716076 is about 11389.2965542214. The cubic root of 129716076 is about 506.2106378785.

The spelling of 129716076 in words is "one hundred twenty-nine million, seven hundred sixteen thousand, seventy-six".