313213297 has 4 divisors (see below), whose sum is σ = 313287156. Its totient is φ = 313139440.

The previous prime is 313213283. The next prime is 313213301. The reversal of 313213297 is 792312313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27468081 + 285745216 = 5241^2 + 16904^2 .

It is a cyclic number.

It is not a de Polignac number, because 313213297 - 2⁷ = 313213169 is a prime.

It is a super-2 number, since 2×313213297² = 196205138835220418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313213207) 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 in 3 ways as a sum of consecutive naturals, for example, 30154 + ... + 39187.

It is an arithmetic number, because the mean of its divisors is an integer number (78321789).

Almost surely, 2^313213297 is an apocalyptic number.

It is an amenable number.

313213297 is a deficient number, since it is larger than the sum of its proper divisors (73859).

313213297 is an equidigital number, since it uses as much as digits as its factorization.

313213297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73858.

The product of its digits is 6804, while the sum is 31.

The square root of 313213297 is about 17697.8331159495. The cubic root of 313213297 is about 679.1203280582.

The spelling of 313213297 in words is "three hundred thirteen million, two hundred thirteen thousand, two hundred ninety-seven".