1313552239 has 2 divisors, whose sum is σ = 1313552240. Its totient is φ = 1313552238.

The previous prime is 1313552231. The next prime is 1313552257. The reversal of 1313552239 is 9322553131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313552239 - 2³ = 1313552231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313552231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656776119 + 656776120.

It is an arithmetic number, because the mean of its divisors is an integer number (656776120).

Almost surely, 2^1313552239 is an apocalyptic number.

1313552239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313552239 is an equidigital number, since it uses as much as digits as its factorization.

1313552239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 34.

The square root of 1313552239 is about 36242.9612338727. The cubic root of 1313552239 is about 1095.1722973458.

The spelling of 1313552239 in words is "one billion, three hundred thirteen million, five hundred fifty-two thousand, two hundred thirty-nine".