318874 has 4 divisors (see below), whose sum is σ = 478314. Its totient is φ = 159436.

The previous prime is 318863. The next prime is 318881. The reversal of 318874 is 478813.

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., 294849 + 24025 = 543^2 + 155^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 79717 + ... + 79720.

2³¹⁸⁸⁷⁴ is an apocalyptic number.

318874 is a deficient number, since it is larger than the sum of its proper divisors (159440).

318874 is a wasteful number, since it uses less digits than its factorization.

318874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159439.

The product of its digits is 5376, while the sum is 31.

The square root of 318874 is about 564.6892950995. The cubic root of 318874 is about 68.3187172123.

The spelling of 318874 in words is "three hundred eighteen thousand, eight hundred seventy-four".