315053213 has 2 divisors, whose sum is σ = 315053214. Its totient is φ = 315053212.

The previous prime is 315053209. The next prime is 315053237. The reversal of 315053213 is 312350513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160224964 + 154828249 = 12658^2 + 12443^2 .

It is a cyclic number.

It is not a de Polignac number, because 315053213 - 2² = 315053209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315053203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157526606 + 157526607.

It is an arithmetic number, because the mean of its divisors is an integer number (157526607).

Almost surely, 2^315053213 is an apocalyptic number.

It is an amenable number.

315053213 is a deficient number, since it is larger than the sum of its proper divisors (1).

315053213 is an equidigital number, since it uses as much as digits as its factorization.

315053213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 315053213 is about 17749.7383924384. The cubic root of 315053213 is about 680.4475233168.

The spelling of 315053213 in words is "three hundred fifteen million, fifty-three thousand, two hundred thirteen".