12111149 has 2 divisors, whose sum is σ = 12111150. Its totient is φ = 12111148.

The previous prime is 12111139. The next prime is 12111161. The reversal of 12111149 is 94111121.

12111149 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10355524 + 1755625 = 3218^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111149 - 2²⁰ = 11062573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12111149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111139) 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, 6055574 + 6055575.

It is an arithmetic number, because the mean of its divisors is an integer number (6055575).

Almost surely, 2^12111149 is an apocalyptic number.

It is an amenable number.

12111149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111149 is an equidigital number, since it uses as much as digits as its factorization.

12111149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 20.

The square root of 12111149 is about 3480.1076132786. The cubic root of 12111149 is about 229.6475319630.

The spelling of 12111149 in words is "twelve million, one hundred eleven thousand, one hundred forty-nine".