315173328409 has 9 divisors (see below), whose sum is σ = 316500985567. Its totient is φ = 313851224344.

The previous prime is 315173328361. The next prime is 315173328451. The reversal of 315173328409 is 904823371513.

The square root of 315173328409 is 561403.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 20736864009 + 294436464400 = 144003^2 + 542620^2 .

It is not a de Polignac number, because 315173328409 - 2²⁹ = 314636457497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315173368409) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 151016364 + ... + 151018450.

Almost surely, 2^315173328409 is an apocalyptic number.

315173328409 is the 561403-rd square number.

315173328409 is the 280702-nd centered octagonal number.

It is an amenable number.

315173328409 is a deficient number, since it is larger than the sum of its proper divisors (1327657158).

315173328409 is an frugal number, since it uses more digits than its factorization.

315173328409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4712 (or 2356 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 315173328409 in words is "three hundred fifteen billion, one hundred seventy-three million, three hundred twenty-eight thousand, four hundred nine".