315524009 has 2 divisors, whose sum is σ = 315524010. Its totient is φ = 315524008.

The previous prime is 315523997. The next prime is 315524017. The reversal of 315524009 is 900425513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259693225 + 55830784 = 16115^2 + 7472^2 .

It is a cyclic number.

It is not a de Polignac number, because 315524009 - 2²⁰ = 314475433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (315524059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157762004 + 157762005.

It is an arithmetic number, because the mean of its divisors is an integer number (157762005).

Almost surely, 2^315524009 is an apocalyptic number.

It is an amenable number.

315524009 is a deficient number, since it is larger than the sum of its proper divisors (1).

315524009 is an equidigital number, since it uses as much as digits as its factorization.

315524009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 315524009 is about 17762.9954962557. The cubic root of 315524009 is about 680.7862941656.

The spelling of 315524009 in words is "three hundred fifteen million, five hundred twenty-four thousand, nine".