129318313 has 8 divisors (see below), whose sum is σ = 136773920. Its totient is φ = 121927680.

The previous prime is 129318311. The next prime is 129318323. The reversal of 129318313 is 313813921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129318313 - 2¹ = 129318311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129318311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12120 + ... + 20137.

It is an arithmetic number, because the mean of its divisors is an integer number (17096740).

Almost surely, 2^129318313 is an apocalyptic number.

It is an amenable number.

129318313 is a deficient number, since it is larger than the sum of its proper divisors (7455607).

129318313 is a wasteful number, since it uses less digits than its factorization.

129318313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32487.

The product of its digits is 3888, while the sum is 31.

The square root of 129318313 is about 11371.8210063296. The cubic root of 129318313 is about 505.6926912245.

The spelling of 129318313 in words is "one hundred twenty-nine million, three hundred eighteen thousand, three hundred thirteen".