239407313 has 2 divisors, whose sum is σ = 239407314. Its totient is φ = 239407312.

The previous prime is 239407303. The next prime is 239407339. The reversal of 239407313 is 313704932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185722384 + 53684929 = 13628^2 + 7327^2 .

It is a cyclic number.

It is not a de Polignac number, because 239407313 - 2⁴ = 239407297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239407313.

It is not a weakly prime, because it can be changed into another prime (239407303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119703656 + 119703657.

It is an arithmetic number, because the mean of its divisors is an integer number (119703657).

Almost surely, 2^239407313 is an apocalyptic number.

It is an amenable number.

239407313 is a deficient number, since it is larger than the sum of its proper divisors (1).

239407313 is an equidigital number, since it uses as much as digits as its factorization.

239407313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 239407313 is about 15472.7926697154. The cubic root of 239407313 is about 620.9345194212.

The spelling of 239407313 in words is "two hundred thirty-nine million, four hundred seven thousand, three hundred thirteen".