12072188 has 6 divisors (see below), whose sum is σ = 21126336. Its totient is φ = 6036092.

The previous prime is 12072187. The next prime is 12072191. The reversal of 12072188 is 88127021.

It is a self number, because there is not a number n which added to its sum of digits gives 12072188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072187) 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 as a sum of consecutive naturals, namely, 1509020 + ... + 1509027.

It is an arithmetic number, because the mean of its divisors is an integer number (3521056).

Almost surely, 2^12072188 is an apocalyptic number.

It is an amenable number.

12072188 is a deficient number, since it is larger than the sum of its proper divisors (9054148).

12072188 is a wasteful number, since it uses less digits than its factorization.

12072188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018051 (or 3018049 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 12072188 is about 3474.5054324321. The cubic root of 12072188 is about 229.4010123024.

The spelling of 12072188 in words is "twelve million, seventy-two thousand, one hundred eighty-eight".