318369 has 4 divisors (see below), whose sum is σ = 424496. Its totient is φ = 212244.

The previous prime is 318349. The next prime is 318377. The reversal of 318369 is 963813.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 318369 - 2⁵ = 318337 is a prime.

It is a super-2 number, since 2×318369² = 202717640322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

318369 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 318369.

It is not an unprimeable number, because it can be changed into a prime (318319) 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, 53059 + ... + 53064.

It is an arithmetic number, because the mean of its divisors is an integer number (106124).

2³¹⁸³⁶⁹ is an apocalyptic number.

It is an amenable number.

318369 is a deficient number, since it is larger than the sum of its proper divisors (106127).

318369 is a wasteful number, since it uses less digits than its factorization.

318369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106126.

The product of its digits is 3888, while the sum is 30.

The square root of 318369 is about 564.2419693713. The cubic root of 318369 is about 68.2826327597.

The spelling of 318369 in words is "three hundred eighteen thousand, three hundred sixty-nine".