313012229 has 2 divisors, whose sum is σ = 313012230. Its totient is φ = 313012228.

The previous prime is 313012181. The next prime is 313012243. The reversal of 313012229 is 922210313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299359204 + 13653025 = 17302^2 + 3695^2 .

It is a cyclic number.

It is not a de Polignac number, because 313012229 - 2²⁸ = 44576773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313012529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156506114 + 156506115.

It is an arithmetic number, because the mean of its divisors is an integer number (156506115).

Almost surely, 2^313012229 is an apocalyptic number.

It is an amenable number.

313012229 is a deficient number, since it is larger than the sum of its proper divisors (1).

313012229 is an equidigital number, since it uses as much as digits as its factorization.

313012229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 313012229 is about 17692.1516215524. The cubic root of 313012229 is about 678.9749759959.

The spelling of 313012229 in words is "three hundred thirteen million, twelve thousand, two hundred twenty-nine".