313085 has 4 divisors (see below), whose sum is σ = 375708. Its totient is φ = 250464.

The previous prime is 313081. The next prime is 313087. The reversal of 313085 is 580313.

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 45796 + 267289 = 214^2 + 517^2 .

It is a cyclic number.

It is not a de Polignac number, because 313085 - 2² = 313081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313085.

It is not an unprimeable number, because it can be changed into a prime (313081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31304 + ... + 31313.

It is an arithmetic number, because the mean of its divisors is an integer number (93927).

2³¹³⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

313085 is a deficient number, since it is larger than the sum of its proper divisors (62623).

313085 is an equidigital number, since it uses as much as digits as its factorization.

313085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62622.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 313085 is about 559.5399896343. The cubic root of 313085 is about 67.9027589339.

Adding to 313085 its reverse (580313), we get a palindrome (893398).

It can be divided in two parts, 31308 and 5, that added together give a palindrome (31313).

The spelling of 313085 in words is "three hundred thirteen thousand, eighty-five".