313222457 has 2 divisors, whose sum is σ = 313222458. Its totient is φ = 313222456.

The previous prime is 313222381. The next prime is 313222489. The reversal of 313222457 is 754222313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304991296 + 8231161 = 17464^2 + 2869^2 .

It is a cyclic number.

It is not a de Polignac number, because 313222457 - 2¹² = 313218361 is a prime.

It is not a weakly prime, because it can be changed into another prime (313222757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156611228 + 156611229.

It is an arithmetic number, because the mean of its divisors is an integer number (156611229).

Almost surely, 2^313222457 is an apocalyptic number.

It is an amenable number.

313222457 is a deficient number, since it is larger than the sum of its proper divisors (1).

313222457 is an equidigital number, since it uses as much as digits as its factorization.

313222457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 313222457 is about 17698.0919028013. The cubic root of 313222457 is about 679.1269483408.

The spelling of 313222457 in words is "three hundred thirteen million, two hundred twenty-two thousand, four hundred fifty-seven".