315535013 has 2 divisors, whose sum is σ = 315535014. Its totient is φ = 315535012.

The previous prime is 315534991. The next prime is 315535027. The reversal of 315535013 is 310535513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214271044 + 101263969 = 14638^2 + 10063^2 .

It is an emirp because it is prime and its reverse (310535513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315535013 - 2¹⁸ = 315272869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315535043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157767506 + 157767507.

It is an arithmetic number, because the mean of its divisors is an integer number (157767507).

Almost surely, 2^315535013 is an apocalyptic number.

It is an amenable number.

315535013 is a deficient number, since it is larger than the sum of its proper divisors (1).

315535013 is an equidigital number, since it uses as much as digits as its factorization.

315535013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 315535013 is about 17763.3052386092. The cubic root of 315535013 is about 680.7942082863.

The spelling of 315535013 in words is "three hundred fifteen million, five hundred thirty-five thousand, thirteen".