129714387 has 32 divisors (see below), whose sum is σ = 199480320. Its totient is φ = 74149920.

The previous prime is 129714379. The next prime is 129714397. The reversal of 129714387 is 783417921.

It is not a de Polignac number, because 129714387 - 2³ = 129714379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129714337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277528 + ... + 277994.

It is an arithmetic number, because the mean of its divisors is an integer number (6233760).

Almost surely, 2^129714387 is an apocalyptic number.

129714387 is a deficient number, since it is larger than the sum of its proper divisors (69765933).

129714387 is a wasteful number, since it uses less digits than its factorization.

129714387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its digits is 84672, while the sum is 42.

The square root of 129714387 is about 11389.2224054147. Note that the first 3 decimals coincide. The cubic root of 129714387 is about 506.2084407890.

The spelling of 129714387 in words is "one hundred twenty-nine million, seven hundred fourteen thousand, three hundred eighty-seven".