315450043 has 2 divisors, whose sum is σ = 315450044. Its totient is φ = 315450042.

The previous prime is 315450007. The next prime is 315450059. The reversal of 315450043 is 340054513.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315450043 is a prime.

It is not a weakly prime, because it can be changed into another prime (315450073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157725021 + 157725022.

It is an arithmetic number, because the mean of its divisors is an integer number (157725022).

Almost surely, 2^315450043 is an apocalyptic number.

315450043 is a deficient number, since it is larger than the sum of its proper divisors (1).

315450043 is an equidigital number, since it uses as much as digits as its factorization.

315450043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 315450043 is about 17760.9133492622. The cubic root of 315450043 is about 680.7330927473.

The spelling of 315450043 in words is "three hundred fifteen million, four hundred fifty thousand, forty-three".