313315279 has 2 divisors, whose sum is σ = 313315280. Its totient is φ = 313315278.

The previous prime is 313315273. The next prime is 313315307. The reversal of 313315279 is 972513313.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (972513313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313315279 - 2³ = 313315271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313315271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156657639 + 156657640.

It is an arithmetic number, because the mean of its divisors is an integer number (156657640).

Almost surely, 2^313315279 is an apocalyptic number.

313315279 is a deficient number, since it is larger than the sum of its proper divisors (1).

313315279 is an equidigital number, since it uses as much as digits as its factorization.

313315279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 34.

The square root of 313315279 is about 17700.7140816409. The cubic root of 313315279 is about 679.1940270726.

The spelling of 313315279 in words is "three hundred thirteen million, three hundred fifteen thousand, two hundred seventy-nine".