315231053 has 2 divisors, whose sum is σ = 315231054. Its totient is φ = 315231052.

The previous prime is 315231029. The next prime is 315231061. The reversal of 315231053 is 350132513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157803844 + 157427209 = 12562^2 + 12547^2 .

It is a cyclic number.

It is not a de Polignac number, because 315231053 - 2¹² = 315226957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315231013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157615526 + 157615527.

It is an arithmetic number, because the mean of its divisors is an integer number (157615527).

Almost surely, 2^315231053 is an apocalyptic number.

It is an amenable number.

315231053 is a deficient number, since it is larger than the sum of its proper divisors (1).

315231053 is an equidigital number, since it uses as much as digits as its factorization.

315231053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 315231053 is about 17754.7473369800. The cubic root of 315231053 is about 680.5755313489.

Adding to 315231053 its reverse (350132513), we get a palindrome (665363566).

The spelling of 315231053 in words is "three hundred fifteen million, two hundred thirty-one thousand, fifty-three".