317745 has 24 divisors (see below), whose sum is σ = 576576. Its totient is φ = 161568.

The previous prime is 317743. The next prime is 317771. The reversal of 317745 is 547713.

It is not a de Polignac number, because 317745 - 2¹ = 317743 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317745.

It is not an unprimeable number, because it can be changed into a prime (317741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 882 + ... + 1188.

It is an arithmetic number, because the mean of its divisors is an integer number (24024).

2³¹⁷⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

317745 is a deficient number, since it is larger than the sum of its proper divisors (258831).

317745 is a wasteful number, since it uses less digits than its factorization.

317745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 338 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 317745 is about 563.6887439004. The cubic root of 317745 is about 68.2379924937.

It can be divided in two parts, 31 and 7745, that added together give a 5-th power (7776 = 6⁵).

The spelling of 317745 in words is "three hundred seventeen thousand, seven hundred forty-five".