315230869 has 2 divisors, whose sum is σ = 315230870. Its totient is φ = 315230868.

The previous prime is 315230857. The next prime is 315230873. The reversal of 315230869 is 968032513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314352900 + 877969 = 17730^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 315230869 - 2¹⁵ = 315198101 is a prime.

It is a super-2 number, since 2×315230869² = 198741001540990322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315230819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157615434 + 157615435.

It is an arithmetic number, because the mean of its divisors is an integer number (157615435).

Almost surely, 2^315230869 is an apocalyptic number.

It is an amenable number.

315230869 is a deficient number, since it is larger than the sum of its proper divisors (1).

315230869 is an equidigital number, since it uses as much as digits as its factorization.

315230869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 315230869 is about 17754.7421552666. The cubic root of 315230869 is about 680.5753989319.

The spelling of 315230869 in words is "three hundred fifteen million, two hundred thirty thousand, eight hundred sixty-nine".