318343 has 4 divisors (see below), whose sum is σ = 332208. Its totient is φ = 304480.

The previous prime is 318337. The next prime is 318347. The reversal of 318343 is 343813.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 318343 - 2⁹ = 317831 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6898 + ... + 6943.

It is an arithmetic number, because the mean of its divisors is an integer number (83052).

2³¹⁸³⁴³ is an apocalyptic number.

318343 is a deficient number, since it is larger than the sum of its proper divisors (13865).

318343 is a wasteful number, since it uses less digits than its factorization.

318343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13864.

The product of its digits is 864, while the sum is 22.

The square root of 318343 is about 564.2189291401. The cubic root of 318343 is about 68.2807739137.

The spelling of 318343 in words is "three hundred eighteen thousand, three hundred forty-three".