12318669 has 64 divisors (see below), whose sum is σ = 21888000. Its totient is φ = 6765120.

The previous prime is 12318623. The next prime is 12318689. The reversal of 12318669 is 96681321.

It is not a de Polignac number, because 12318669 - 2⁸ = 12318413 is a prime.

It is a super-2 number, since 2×12318669² = 303499211863122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12318689) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 208762 + ... + 208820.

It is an arithmetic number, because the mean of its divisors is an integer number (342000).

Almost surely, 2^12318669 is an apocalyptic number.

12318669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12318669 is a deficient number, since it is larger than the sum of its proper divisors (9569331).

12318669 is a wasteful number, since it uses less digits than its factorization.

12318669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 129 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12318669 is about 3509.7961479265. The cubic root of 12318669 is about 230.9517524467.

The spelling of 12318669 in words is "twelve million, three hundred eighteen thousand, six hundred sixty-nine".