318105 has 12 divisors (see below), whose sum is σ = 551460. Its totient is φ = 169632.

The previous prime is 318103. The next prime is 318107. The reversal of 318105 is 501813.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (318103) and next prime (318107).

It can be written as a sum of positive squares in 2 ways, for example, as 112896 + 205209 = 336^2 + 453^2 .

It is not a de Polignac number, because 318105 - 2¹ = 318103 is a prime.

It is a Curzon 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 318105.

It is not an unprimeable number, because it can be changed into a prime (318103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3490 + ... + 3579.

It is an arithmetic number, because the mean of its divisors is an integer number (45955).

2³¹⁸¹⁰⁵ is an apocalyptic number.

It is an amenable number.

318105 is a deficient number, since it is larger than the sum of its proper divisors (233355).

318105 is a wasteful number, since it uses less digits than its factorization.

318105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080 (or 7077 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 318105 is about 564.0079786670. The cubic root of 318105 is about 68.2637536183.

Adding to 318105 its reverse (501813), we get a palindrome (819918).

The spelling of 318105 in words is "three hundred eighteen thousand, one hundred five".