318085 has 4 divisors (see below), whose sum is σ = 381708. Its totient is φ = 254464.

The previous prime is 318077. The next prime is 318103. The reversal of 318085 is 580813.

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 146689 + 171396 = 383^2 + 414^2 .

It is a cyclic number.

It is not a de Polignac number, because 318085 - 2³ = 318077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31804 + ... + 31813.

It is an arithmetic number, because the mean of its divisors is an integer number (95427).

2³¹⁸⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

318085 is a deficient number, since it is larger than the sum of its proper divisors (63623).

318085 is an equidigital number, since it uses as much as digits as its factorization.

318085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63622.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 318085 is about 563.9902481426. The cubic root of 318085 is about 68.2623229548.

Adding to 318085 its reverse (580813), we get a palindrome (898898).

It can be divided in two parts, 31808 and 5, that added together give a palindrome (31813).

The spelling of 318085 in words is "three hundred eighteen thousand, eighty-five".