315018413 has 2 divisors, whose sum is σ = 315018414. Its totient is φ = 315018412.

The previous prime is 315018397. The next prime is 315018427. The reversal of 315018413 is 314810513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287539849 + 27478564 = 16957^2 + 5242^2 .

It is a cyclic number.

It is not a de Polignac number, because 315018413 - 2⁴ = 315018397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315018443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157509206 + 157509207.

It is an arithmetic number, because the mean of its divisors is an integer number (157509207).

Almost surely, 2^315018413 is an apocalyptic number.

It is an amenable number.

315018413 is a deficient number, since it is larger than the sum of its proper divisors (1).

315018413 is an equidigital number, since it uses as much as digits as its factorization.

315018413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 315018413 is about 17748.7580692284. The cubic root of 315018413 is about 680.4224688765.

Adding to 315018413 its reverse (314810513), we get a palindrome (629828926).

The spelling of 315018413 in words is "three hundred fifteen million, eighteen thousand, four hundred thirteen".