315330193 has 2 divisors, whose sum is σ = 315330194. Its totient is φ = 315330192.

The previous prime is 315330187. The next prime is 315330227. The reversal of 315330193 is 391033513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296425089 + 18905104 = 17217^2 + 4348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315330193 is a prime.

It is not a weakly prime, because it can be changed into another prime (315330173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157665096 + 157665097.

It is an arithmetic number, because the mean of its divisors is an integer number (157665097).

Almost surely, 2^315330193 is an apocalyptic number.

It is an amenable number.

315330193 is a deficient number, since it is larger than the sum of its proper divisors (1).

315330193 is an equidigital number, since it uses as much as digits as its factorization.

315330193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3645, while the sum is 28.

The square root of 315330193 is about 17757.5390468387. The cubic root of 315330193 is about 680.6468707527.

The spelling of 315330193 in words is "three hundred fifteen million, three hundred thirty thousand, one hundred ninety-three".