313013249 has 2 divisors, whose sum is σ = 313013250. Its totient is φ = 313013248.

The previous prime is 313013243. The next prime is 313013257. The reversal of 313013249 is 942310313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190246849 + 122766400 = 13793^2 + 11080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313013249 is a prime.

It is not a weakly prime, because it can be changed into another prime (313013243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156506624 + 156506625.

It is an arithmetic number, because the mean of its divisors is an integer number (156506625).

Almost surely, 2^313013249 is an apocalyptic number.

It is an amenable number.

313013249 is a deficient number, since it is larger than the sum of its proper divisors (1).

313013249 is an equidigital number, since it uses as much as digits as its factorization.

313013249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 313013249 is about 17692.1804478702. The cubic root of 313013249 is about 678.9757135110.

The spelling of 313013249 in words is "three hundred thirteen million, thirteen thousand, two hundred forty-nine".