315059243 has 2 divisors, whose sum is σ = 315059244. Its totient is φ = 315059242.

The previous prime is 315059209. The next prime is 315059257. The reversal of 315059243 is 342950513.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315059243 is a prime.

It is not a weakly prime, because it can be changed into another prime (315059443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157529621 + 157529622.

It is an arithmetic number, because the mean of its divisors is an integer number (157529622).

Almost surely, 2^315059243 is an apocalyptic number.

315059243 is a deficient number, since it is larger than the sum of its proper divisors (1).

315059243 is an equidigital number, since it uses as much as digits as its factorization.

315059243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 315059243 is about 17749.9082532840. The cubic root of 315059243 is about 680.4518644590.

The spelling of 315059243 in words is "three hundred fifteen million, fifty-nine thousand, two hundred forty-three".