129959384 has 16 divisors (see below), whose sum is σ = 254268720. Its totient is φ = 62154400.

The previous prime is 129959383. The next prime is 129959387. The reversal of 129959384 is 483959921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129959383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352967 + ... + 353334.

It is an arithmetic number, because the mean of its divisors is an integer number (15891795).

Almost surely, 2^129959384 is an apocalyptic number.

It is an amenable number.

129959384 is a deficient number, since it is larger than the sum of its proper divisors (124309336).

129959384 is a wasteful number, since it uses less digits than its factorization.

129959384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706330 (or 706326 counting only the distinct ones).

The product of its digits is 699840, while the sum is 50.

The square root of 129959384 is about 11399.9729824241. The cubic root of 129959384 is about 506.5269393862.

The spelling of 129959384 in words is "one hundred twenty-nine million, nine hundred fifty-nine thousand, three hundred eighty-four".