319316225 has 6 divisors (see below), whose sum is σ = 395952150. Its totient is φ = 255452960.

The previous prime is 319316209. The next prime is 319316269. The reversal of 319316225 is 522613913.

It can be written as a sum of positive squares in 3 ways, for example, as 97693456 + 221622769 = 9884^2 + 14887^2 .

It is not a de Polignac number, because 319316225 - 2⁴ = 319316209 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 319316191 and 319316200.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6386300 + ... + 6386349.

It is an arithmetic number, because the mean of its divisors is an integer number (65992025).

Almost surely, 2^319316225 is an apocalyptic number.

It is an amenable number.

319316225 is a deficient number, since it is larger than the sum of its proper divisors (76635925).

319316225 is a wasteful number, since it uses less digits than its factorization.

319316225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12772659 (or 12772654 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 319316225 is about 17869.4215071445. The cubic root of 319316225 is about 683.5028484200.

The spelling of 319316225 in words is "three hundred nineteen million, three hundred sixteen thousand, two hundred twenty-five".