315241193 has 2 divisors, whose sum is σ = 315241194. Its totient is φ = 315241192.

The previous prime is 315241187. The next prime is 315241211. The reversal of 315241193 is 391142513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254977024 + 60264169 = 15968^2 + 7763^2 .

It is a cyclic number.

It is not a de Polignac number, because 315241193 - 2²⁰ = 314192617 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (315241123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157620596 + 157620597.

It is an arithmetic number, because the mean of its divisors is an integer number (157620597).

Almost surely, 2^315241193 is an apocalyptic number.

It is an amenable number.

315241193 is a deficient number, since it is larger than the sum of its proper divisors (1).

315241193 is an equidigital number, since it uses as much as digits as its factorization.

315241193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 315241193 is about 17755.0328921126. The cubic root of 315241193 is about 680.5828286016.

The spelling of 315241193 in words is "three hundred fifteen million, two hundred forty-one thousand, one hundred ninety-three".