12318814 has 4 divisors (see below), whose sum is σ = 18478224. Its totient is φ = 6159406.

The previous prime is 12318809. The next prime is 12318851. The reversal of 12318814 is 41881321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41881321 = 23 ⋅1820927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3079702 + ... + 3079705.

It is an arithmetic number, because the mean of its divisors is an integer number (4619556).

Almost surely, 2^12318814 is an apocalyptic number.

12318814 is a deficient number, since it is larger than the sum of its proper divisors (6159410).

12318814 is an equidigital number, since it uses as much as digits as its factorization.

12318814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6159409.

The product of its digits is 1536, while the sum is 28.

The square root of 12318814 is about 3509.8168043361. The cubic root of 12318814 is about 230.9526586018.

The spelling of 12318814 in words is "twelve million, three hundred eighteen thousand, eight hundred fourteen".