313170409 has 2 divisors, whose sum is σ = 313170410. Its totient is φ = 313170408.

The previous prime is 313170373. The next prime is 313170467. The reversal of 313170409 is 904071313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181494784 + 131675625 = 13472^2 + 11475^2 .

It is an emirp because it is prime and its reverse (904071313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313170409 - 2⁹ = 313169897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313170499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156585204 + 156585205.

It is an arithmetic number, because the mean of its divisors is an integer number (156585205).

Almost surely, 2^313170409 is an apocalyptic number.

It is an amenable number.

313170409 is a deficient number, since it is larger than the sum of its proper divisors (1).

313170409 is an equidigital number, since it uses as much as digits as its factorization.

313170409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 313170409 is about 17696.6214007081. The cubic root of 313170409 is about 679.0893295423.

The spelling of 313170409 in words is "three hundred thirteen million, one hundred seventy thousand, four hundred nine".