12084181 has 4 divisors (see below), whose sum is σ = 12141664. Its totient is φ = 12026700.

The previous prime is 12084173. The next prime is 12084197. The reversal of 12084181 is 18148021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12084181 - 2³ = 12084173 is a prime.

It is a super-2 number, since 2×12084181² = 292054860881522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12084151) 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 3 ways as a sum of consecutive naturals, for example, 28425 + ... + 28846.

It is an arithmetic number, because the mean of its divisors is an integer number (3035416).

Almost surely, 2^12084181 is an apocalyptic number.

It is an amenable number.

12084181 is a deficient number, since it is larger than the sum of its proper divisors (57483).

12084181 is an equidigital number, since it uses as much as digits as its factorization.

12084181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57482.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 12084181 is about 3476.2308611483. The cubic root of 12084181 is about 229.4769525763.

The spelling of 12084181 in words is "twelve million, eighty-four thousand, one hundred eighty-one".