313038449 has 2 divisors, whose sum is σ = 313038450. Its totient is φ = 313038448.

The previous prime is 313038413. The next prime is 313038457. The reversal of 313038449 is 944830313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251698225 + 61340224 = 15865^2 + 7832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313038449 is a prime.

It is not a weakly prime, because it can be changed into another prime (313038049) 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, 156519224 + 156519225.

It is an arithmetic number, because the mean of its divisors is an integer number (156519225).

Almost surely, 2^313038449 is an apocalyptic number.

It is an amenable number.

313038449 is a deficient number, since it is larger than the sum of its proper divisors (1).

313038449 is an equidigital number, since it uses as much as digits as its factorization.

313038449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 313038449 is about 17692.8926125719. The cubic root of 313038449 is about 678.9939339632.

The spelling of 313038449 in words is "three hundred thirteen million, thirty-eight thousand, four hundred forty-nine".