129955683 has 16 divisors (see below), whose sum is σ = 203567616. Its totient is φ = 72702240.

The previous prime is 129955669. The next prime is 129955717. The reversal of 129955683 is 386559921.

It is a happy number.

It is not a de Polignac number, because 129955683 - 2²² = 125761379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129955613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151035 + ... + 151892.

It is an arithmetic number, because the mean of its divisors is an integer number (12722976).

Almost surely, 2^129955683 is an apocalyptic number.

129955683 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

129955683 is a deficient number, since it is larger than the sum of its proper divisors (73611933).

129955683 is a wasteful number, since it uses less digits than its factorization.

129955683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302954.

The product of its digits is 583200, while the sum is 48.

The square root of 129955683 is about 11399.8106563223. The cubic root of 129955683 is about 506.5221310275.

The spelling of 129955683 in words is "one hundred twenty-nine million, nine hundred fifty-five thousand, six hundred eighty-three".