318922 has 8 divisors (see below), whose sum is σ = 481572. Its totient is φ = 158400.

The previous prime is 318919. The next prime is 318949. The reversal of 318922 is 229813.

It can be written as a sum of positive squares in 2 ways, for example, as 241081 + 77841 = 491^2 + 279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×318922² = 203422484168, which contains 22 as substring.

It is a plaindrome in base 12.

It is a nialpdrome in base 14.

It is an unprimeable number.

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, 79 + ... + 802.

2³¹⁸⁹²² is an apocalyptic number.

318922 is a deficient number, since it is larger than the sum of its proper divisors (162650).

318922 is a wasteful number, since it uses less digits than its factorization.

318922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064.

The product of its digits is 864, while the sum is 25.

The square root of 318922 is about 564.7317947486. The cubic root of 318922 is about 68.3221450385.

The spelling of 318922 in words is "three hundred eighteen thousand, nine hundred twenty-two".