315448613 has 2 divisors, whose sum is σ = 315448614. Its totient is φ = 315448612.

The previous prime is 315448589. The next prime is 315448687. The reversal of 315448613 is 316844513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311981569 + 3467044 = 17663^2 + 1862^2 .

It is a cyclic number.

It is not a de Polignac number, because 315448613 - 2²⁸ = 47013157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315448313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157724306 + 157724307.

It is an arithmetic number, because the mean of its divisors is an integer number (157724307).

Almost surely, 2^315448613 is an apocalyptic number.

It is an amenable number.

315448613 is a deficient number, since it is larger than the sum of its proper divisors (1).

315448613 is an equidigital number, since it uses as much as digits as its factorization.

315448613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 315448613 is about 17760.8730922779. The cubic root of 315448613 is about 680.7320641113.

The spelling of 315448613 in words is "three hundred fifteen million, four hundred forty-eight thousand, six hundred thirteen".