129599107 has 6 divisors (see below), whose sum is σ = 142452044. Its totient is φ = 117817260.

The previous prime is 129599101. The next prime is 129599111. The reversal of 129599107 is 701995921.

It is a de Polignac number, because none of the positive numbers 2^k-129599107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129599101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 535413 + ... + 535654.

Almost surely, 2^129599107 is an apocalyptic number.

129599107 is a deficient number, since it is larger than the sum of its proper divisors (12852937).

129599107 is a wasteful number, since it uses less digits than its factorization.

129599107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071089 (or 1071078 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 129599107 is about 11384.1603555115. The cubic root of 129599107 is about 506.0584368553.

The spelling of 129599107 in words is "one hundred twenty-nine million, five hundred ninety-nine thousand, one hundred seven".