315343543 has 2 divisors, whose sum is σ = 315343544. Its totient is φ = 315343542.

The previous prime is 315343541. The next prime is 315343571. The reversal of 315343543 is 345343513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315343543 - 2¹ = 315343541 is a prime.

It is a super-2 number, since 2×315343543² = 198883100223585698, which contains 22 as substring.

Together with 315343541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315343541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157671771 + 157671772.

It is an arithmetic number, because the mean of its divisors is an integer number (157671772).

Almost surely, 2^315343543 is an apocalyptic number.

315343543 is a deficient number, since it is larger than the sum of its proper divisors (1).

315343543 is an equidigital number, since it uses as much as digits as its factorization.

315343543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 31.

The square root of 315343543 is about 17757.9149395417. The cubic root of 315343543 is about 680.6564760360.

The spelling of 315343543 in words is "three hundred fifteen million, three hundred forty-three thousand, five hundred forty-three".