317225 has 6 divisors (see below), whose sum is σ = 393390. Its totient is φ = 253760.

The previous prime is 317209. The next prime is 317227. The reversal of 317225 is 522713.

It can be written as a sum of positive squares in 3 ways, for example, as 256 + 316969 = 16^2 + 563^2 .

It is not a de Polignac number, because 317225 - 2⁴ = 317209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 317197 and 317206.

It is not an unprimeable number, because it can be changed into a prime (317227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6320 + ... + 6369.

It is an arithmetic number, because the mean of its divisors is an integer number (65565).

2³¹⁷²²⁵ is an apocalyptic number.

It is an amenable number.

317225 is a deficient number, since it is larger than the sum of its proper divisors (76165).

317225 is a wasteful number, since it uses less digits than its factorization.

317225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12699 (or 12694 counting only the distinct ones).

The product of its digits is 420, while the sum is 20.

The square root of 317225 is about 563.2273075766. The cubic root of 317225 is about 68.2007476061.

Adding to 317225 its reverse (522713), we get a palindrome (839938).

The spelling of 317225 in words is "three hundred seventeen thousand, two hundred twenty-five".