318933 has 6 divisors (see below), whose sum is σ = 460694. Its totient is φ = 212616.

The previous prime is 318919. The next prime is 318949. The reversal of 318933 is 339813.

It can be written as a sum of positive squares in only one way, i.e., 311364 + 7569 = 558^2 + 87^2 .

It is not a de Polignac number, because 318933 - 2⁴ = 318917 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 318897 and 318906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17710 + ... + 17727.

2³¹⁸⁹³³ is an apocalyptic number.

It is an amenable number.

318933 is a deficient number, since it is larger than the sum of its proper divisors (141761).

318933 is a wasteful number, since it uses less digits than its factorization.

318933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35443 (or 35440 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 318933 is about 564.7415338011. The cubic root of 318933 is about 68.3229305335.

The spelling of 318933 in words is "three hundred eighteen thousand, nine hundred thirty-three".