318454 has 4 divisors (see below), whose sum is σ = 477684. Its totient is φ = 159226.

The previous prime is 318443. The next prime is 318457. The reversal of 318454 is 454813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454813 = 41 ⋅11093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318457) by changing a digit.

318454 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79612 + ... + 79615.

It is an arithmetic number, because the mean of its divisors is an integer number (119421).

2³¹⁸⁴⁵⁴ is an apocalyptic number.

318454 is a deficient number, since it is larger than the sum of its proper divisors (159230).

318454 is a wasteful number, since it uses less digits than its factorization.

318454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159229.

The product of its digits is 1920, while the sum is 25.

The square root of 318454 is about 564.3172866394. The cubic root of 318454 is about 68.2887090499.

The spelling of 318454 in words is "three hundred eighteen thousand, four hundred fifty-four".