12047189 has 32 divisors (see below), whose sum is σ = 15974400. Its totient is φ = 8996400.

The previous prime is 12047177. The next prime is 12047219. The reversal of 12047189 is 98174021.

12047189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12047189 - 2⁴ = 12047173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12047149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116912 + ... + 117014.

It is an arithmetic number, because the mean of its divisors is an integer number (499200).

Almost surely, 2^12047189 is an apocalyptic number.

It is an amenable number.

12047189 is a deficient number, since it is larger than the sum of its proper divisors (3927211).

12047189 is a wasteful number, since it uses less digits than its factorization.

12047189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 12047189 is about 3470.9060776691. The cubic root of 12047189 is about 229.2425555534.

The spelling of 12047189 in words is "twelve million, forty-seven thousand, one hundred eighty-nine".