313577213 has 2 divisors, whose sum is σ = 313577214. Its totient is φ = 313577212.

The previous prime is 313577207. The next prime is 313577221. The reversal of 313577213 is 312775313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249545209 + 64032004 = 15797^2 + 8002^2 .

It is a cyclic number.

It is not a de Polignac number, because 313577213 - 2¹⁰ = 313576189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313577213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313577233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156788606 + 156788607.

It is an arithmetic number, because the mean of its divisors is an integer number (156788607).

Almost surely, 2^313577213 is an apocalyptic number.

It is an amenable number.

313577213 is a deficient number, since it is larger than the sum of its proper divisors (1).

313577213 is an equidigital number, since it uses as much as digits as its factorization.

313577213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13230, while the sum is 32.

The square root of 313577213 is about 17708.1115029243. Note that the first 3 decimals coincide. The cubic root of 313577213 is about 679.3832448423.

The spelling of 313577213 in words is "three hundred thirteen million, five hundred seventy-seven thousand, two hundred thirteen".