318079080225 has 135 divisors (see below), whose sum is σ = 600352310019. Its totient is φ = 166488372000.

The previous prime is 318079080167. The next prime is 318079080229. The reversal of 318079080225 is 522080970813.

It is a happy number.

The square root of 318079080225 is 563985.

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

318079080225 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 114508468881 + 203570611344 = 338391^2 + 451188^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is not a de Polignac number, because 318079080225 - 2⁹ = 318079079713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (318079080229) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 2106483900 + ... + 2106484050.

Almost surely, 2^318079080225 is an apocalyptic number.

318079080225 is the 563985-th square number.

318079080225 is the 281993-rd centered octagonal number.

It is an amenable number.

318079080225 is a deficient number, since it is larger than the sum of its proper divisors (282273229794).

318079080225 is an frugal number, since it uses more digits than its factorization.

318079080225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 318079080225 in words is "three hundred eighteen billion, seventy-nine million, eighty thousand, two hundred twenty-five".