313012949 has 2 divisors, whose sum is σ = 313012950. Its totient is φ = 313012948.

The previous prime is 313012927. The next prime is 313013023. The reversal of 313012949 is 949210313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187416100 + 125596849 = 13690^2 + 11207^2 .

It is a cyclic number.

It is not a de Polignac number, because 313012949 - 2¹⁶ = 312947413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313017949) 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, 156506474 + 156506475.

It is an arithmetic number, because the mean of its divisors is an integer number (156506475).

Almost surely, 2^313012949 is an apocalyptic number.

It is an amenable number.

313012949 is a deficient number, since it is larger than the sum of its proper divisors (1).

313012949 is an equidigital number, since it uses as much as digits as its factorization.

313012949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 313012949 is about 17692.1719695463. The cubic root of 313012949 is about 678.9754965950.

The spelling of 313012949 in words is "three hundred thirteen million, twelve thousand, nine hundred forty-nine".