12168243 has 12 divisors (see below), whose sum is σ = 18610488. Its totient is φ = 7634880.

The previous prime is 12168239. The next prime is 12168257. The reversal of 12168243 is 34286121.

It is not a de Polignac number, because 12168243 - 2² = 12168239 is a prime.

It is a super-2 number, since 2×12168243² = 296132275414098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12168223) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 39613 + ... + 39918.

It is an arithmetic number, because the mean of its divisors is an integer number (1550874).

Almost surely, 2^12168243 is an apocalyptic number.

12168243 is a deficient number, since it is larger than the sum of its proper divisors (6442245).

12168243 is a wasteful number, since it uses less digits than its factorization.

12168243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79554 (or 79551 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 12168243 is about 3488.3008757847. The cubic root of 12168243 is about 230.0078321214.

The spelling of 12168243 in words is "twelve million, one hundred sixty-eight thousand, two hundred forty-three".