12284181 has 48 divisors (see below), whose sum is σ = 22329216. Its totient is φ = 6334848.

The previous prime is 12284171. The next prime is 12284201. The reversal of 12284181 is 18148221.

It is not a de Polignac number, because 12284181 - 2⁹ = 12283669 is a prime.

It is a super-2 number, since 2×12284181² = 301802205681522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12284101) 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 47 ways as a sum of consecutive naturals, for example, 43266 + ... + 43548.

It is an arithmetic number, because the mean of its divisors is an integer number (465192).

Almost surely, 2^12284181 is an apocalyptic number.

It is an amenable number.

12284181 is a deficient number, since it is larger than the sum of its proper divisors (10045035).

12284181 is a wasteful number, since it uses less digits than its factorization.

12284181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 359 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 12284181 is about 3504.8795985026. The cubic root of 12284181 is about 230.7360227344.

The spelling of 12284181 in words is "twelve million, two hundred eighty-four thousand, one hundred eighty-one".