313192609 has 2 divisors, whose sum is σ = 313192610. Its totient is φ = 313192608.

The previous prime is 313192603. The next prime is 313192651. The reversal of 313192609 is 906291313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312299584 + 893025 = 17672^2 + 945^2 .

It is an emirp because it is prime and its reverse (906291313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313192609 - 2⁹ = 313192097 is a prime.

It is a super-2 number, since 2×313192609² = 196179220664453762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (313192603) 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, 156596304 + 156596305.

It is an arithmetic number, because the mean of its divisors is an integer number (156596305).

Almost surely, 2^313192609 is an apocalyptic number.

It is an amenable number.

313192609 is a deficient number, since it is larger than the sum of its proper divisors (1).

313192609 is an equidigital number, since it uses as much as digits as its factorization.

313192609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 313192609 is about 17697.2486279647. The cubic root of 313192609 is about 679.1053755739.

The spelling of 313192609 in words is "three hundred thirteen million, one hundred ninety-two thousand, six hundred nine".