315230213 has 2 divisors, whose sum is σ = 315230214. Its totient is φ = 315230212.

The previous prime is 315230207. The next prime is 315230219. The reversal of 315230213 is 312032513.

It is a balanced prime because it is at equal distance from previous prime (315230207) and next prime (315230219).

It can be written as a sum of positive squares in only one way, i.e., 197767969 + 117462244 = 14063^2 + 10838^2 .

It is a cyclic number.

It is not a de Polignac number, because 315230213 - 2¹² = 315226117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315230219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157615106 + 157615107.

It is an arithmetic number, because the mean of its divisors is an integer number (157615107).

Almost surely, 2^315230213 is an apocalyptic number.

It is an amenable number.

315230213 is a deficient number, since it is larger than the sum of its proper divisors (1).

315230213 is an equidigital number, since it uses as much as digits as its factorization.

315230213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 315230213 is about 17754.7236813193. The cubic root of 315230213 is about 680.5749268358.

Adding to 315230213 its reverse (312032513), we get a palindrome (627262726).

The spelling of 315230213 in words is "three hundred fifteen million, two hundred thirty thousand, two hundred thirteen".