12189133 has 4 divisors (see below), whose sum is σ = 13297248. Its totient is φ = 11081020.

The previous prime is 12189097. The next prime is 12189139. The reversal of 12189133 is 33198121.

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 12189133 - 2⁹ = 12188621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12189139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554041 + ... + 554062.

It is an arithmetic number, because the mean of its divisors is an integer number (3324312).

Almost surely, 2^12189133 is an apocalyptic number.

It is an amenable number.

12189133 is a deficient number, since it is larger than the sum of its proper divisors (1108115).

12189133 is a wasteful number, since it uses less digits than its factorization.

12189133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108114.

The product of its digits is 1296, while the sum is 28.

The square root of 12189133 is about 3491.2938862261. The cubic root of 12189133 is about 230.1393799170.

The spelling of 12189133 in words is "twelve million, one hundred eighty-nine thousand, one hundred thirty-three".