313256863 has 2 divisors, whose sum is σ = 313256864. Its totient is φ = 313256862.

The previous prime is 313256843. The next prime is 313256893. The reversal of 313256863 is 368652313.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313256863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313256813) 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, 156628431 + 156628432.

It is an arithmetic number, because the mean of its divisors is an integer number (156628432).

Almost surely, 2^313256863 is an apocalyptic number.

313256863 is a deficient number, since it is larger than the sum of its proper divisors (1).

313256863 is an equidigital number, since it uses as much as digits as its factorization.

313256863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 37.

The square root of 313256863 is about 17699.0639018000. The cubic root of 313256863 is about 679.1518137208.

It can be divided in two parts, 3132 and 56863, that added together give a palindrome (59995).

The spelling of 313256863 in words is "three hundred thirteen million, two hundred fifty-six thousand, eight hundred sixty-three".