318322 has 4 divisors (see below), whose sum is σ = 477486. Its totient is φ = 159160.

The previous prime is 318319. The next prime is 318323. The reversal of 318322 is 223813.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 203401 + 114921 = 451^2 + 339^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 318322.

It is not an unprimeable number, because it can be changed into a prime (318323) 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 as a sum of consecutive naturals, namely, 79579 + ... + 79582.

2³¹⁸³²² is an apocalyptic number.

318322 is a deficient number, since it is larger than the sum of its proper divisors (159164).

318322 is a wasteful number, since it uses less digits than its factorization.

318322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159163.

The product of its digits is 288, while the sum is 19.

The square root of 318322 is about 564.2003190357. The cubic root of 318322 is about 68.2792724643.

The spelling of 318322 in words is "three hundred eighteen thousand, three hundred twenty-two".