317045 has 4 divisors (see below), whose sum is σ = 380460. Its totient is φ = 253632.

The previous prime is 317029. The next prime is 317047. The reversal of 317045 is 540713.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61009 + 256036 = 247^2 + 506^2 .

It is a cyclic number.

It is not a de Polignac number, because 317045 - 2⁴ = 317029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31700 + ... + 31709.

It is an arithmetic number, because the mean of its divisors is an integer number (95115).

2³¹⁷⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

317045 is a deficient number, since it is larger than the sum of its proper divisors (63415).

317045 is an equidigital number, since it uses as much as digits as its factorization.

317045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63414.

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

The square root of 317045 is about 563.0674915141. The cubic root of 317045 is about 68.1878456624.

Adding to 317045 its reverse (540713), we get a palindrome (857758).

The spelling of 317045 in words is "three hundred seventeen thousand, forty-five".