313274639 has 2 divisors, whose sum is σ = 313274640. Its totient is φ = 313274638.

The previous prime is 313274581. The next prime is 313274683. The reversal of 313274639 is 936472313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313274639 - 2⁸ = 313274383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313274699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156637319 + 156637320.

It is an arithmetic number, because the mean of its divisors is an integer number (156637320).

Almost surely, 2^313274639 is an apocalyptic number.

313274639 is a deficient number, since it is larger than the sum of its proper divisors (1).

313274639 is an equidigital number, since it uses as much as digits as its factorization.

313274639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 38.

The square root of 313274639 is about 17699.5660681272. The cubic root of 313274639 is about 679.1646598073.

The spelling of 313274639 in words is "three hundred thirteen million, two hundred seventy-four thousand, six hundred thirty-nine".