129315339 has 16 divisors (see below), whose sum is σ = 194205600. Its totient is φ = 85027968.

The previous prime is 129315299. The next prime is 129315371. The reversal of 129315339 is 933513921.

129315339 is a `hidden beast` number, since 1 + 2 + 9 + 315 + 339 = 666.

It is not a de Polignac number, because 129315339 - 2¹³ = 129307147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129315239) 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, 30834 + ... + 34775.

It is an arithmetic number, because the mean of its divisors is an integer number (12137850).

Almost surely, 2^129315339 is an apocalyptic number.

129315339 is a deficient number, since it is larger than the sum of its proper divisors (64890261).

129315339 is an equidigital number, since it uses as much as digits as its factorization.

129315339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65691 (or 65685 counting only the distinct ones).

The product of its digits is 21870, while the sum is 36.

The square root of 129315339 is about 11371.6902437588. The cubic root of 129315339 is about 505.6888146362.

The spelling of 129315339 in words is "one hundred twenty-nine million, three hundred fifteen thousand, three hundred thirty-nine".