315062213 has 2 divisors, whose sum is σ = 315062214. Its totient is φ = 315062212.

The previous prime is 315062203. The next prime is 315062219. The reversal of 315062213 is 312260513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302516449 + 12545764 = 17393^2 + 3542^2 .

It is an emirp because it is prime and its reverse (312260513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315062213 - 2¹⁰ = 315061189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315062219) 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, 157531106 + 157531107.

It is an arithmetic number, because the mean of its divisors is an integer number (157531107).

Almost surely, 2^315062213 is an apocalyptic number.

It is an amenable number.

315062213 is a deficient number, since it is larger than the sum of its proper divisors (1).

315062213 is an equidigital number, since it uses as much as digits as its factorization.

315062213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 315062213 is about 17749.9919154911. The cubic root of 315062213 is about 680.4540026131.

The spelling of 315062213 in words is "three hundred fifteen million, sixty-two thousand, two hundred thirteen".