129907516 has 12 divisors (see below), whose sum is σ = 232883280. Its totient is φ = 63369440.

The previous prime is 129907507. The next prime is 129907553. The reversal of 129907516 is 615709921.

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, 395896 + ... + 396223.

It is an arithmetic number, because the mean of its divisors is an integer number (19406940).

Almost surely, 2^129907516 is an apocalyptic number.

It is an amenable number.

129907516 is a deficient number, since it is larger than the sum of its proper divisors (102975764).

129907516 is a wasteful number, since it uses less digits than its factorization.

129907516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792164 (or 792162 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 129907516 is about 11397.6978377214. The cubic root of 129907516 is about 506.4595438803.

The spelling of 129907516 in words is "one hundred twenty-nine million, nine hundred seven thousand, five hundred sixteen".