315110561 has 2 divisors, whose sum is σ = 315110562. Its totient is φ = 315110560.

The previous prime is 315110533. The next prime is 315110591. The reversal of 315110561 is 165011513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231040000 + 84070561 = 15200^2 + 9169^2 .

It is a cyclic number.

It is not a de Polignac number, because 315110561 - 2¹⁴ = 315094177 is a prime.

It is not a weakly prime, because it can be changed into another prime (315110591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157555280 + 157555281.

It is an arithmetic number, because the mean of its divisors is an integer number (157555281).

Almost surely, 2^315110561 is an apocalyptic number.

It is an amenable number.

315110561 is a deficient number, since it is larger than the sum of its proper divisors (1).

315110561 is an equidigital number, since it uses as much as digits as its factorization.

315110561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 315110561 is about 17751.3537793600. The cubic root of 315110561 is about 680.4888072814.

The spelling of 315110561 in words is "three hundred fifteen million, one hundred ten thousand, five hundred sixty-one".