129959316 has 144 divisors (see below), whose sum is σ = 371804160. Its totient is φ = 39540960.

The previous prime is 129959279. The next prime is 129959317. The reversal of 129959316 is 613959921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129959317) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 572395 + ... + 572621.

Almost surely, 2^129959316 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 129959316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185902080).

129959316 is an abundant number, since it is smaller than the sum of its proper divisors (241844844).

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

129959316 is a wasteful number, since it uses less digits than its factorization.

129959316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 282 counting only the distinct ones).

The product of its digits is 131220, while the sum is 45.

The square root of 129959316 is about 11399.9699999605. The cubic root of 129959316 is about 506.5268510410.

The spelling of 129959316 in words is "one hundred twenty-nine million, nine hundred fifty-nine thousand, three hundred sixteen".