313016449 has 2 divisors, whose sum is σ = 313016450. Its totient is φ = 313016448.

The previous prime is 313016443. The next prime is 313016477. The reversal of 313016449 is 944610313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192016449 + 121000000 = 13857^2 + 11000^2 .

It is an emirp because it is prime and its reverse (944610313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313016449 - 2⁷ = 313016321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313016449.

It is not a weakly prime, because it can be changed into another prime (313016443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156508224 + 156508225.

It is an arithmetic number, because the mean of its divisors is an integer number (156508225).

Almost surely, 2^313016449 is an apocalyptic number.

It is an amenable number.

313016449 is a deficient number, since it is larger than the sum of its proper divisors (1).

313016449 is an equidigital number, since it uses as much as digits as its factorization.

313016449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 313016449 is about 17692.2708830721. The cubic root of 313016449 is about 678.9780272735.

The spelling of 313016449 in words is "three hundred thirteen million, sixteen thousand, four hundred forty-nine".