12112549 has 2 divisors, whose sum is σ = 12112550. Its totient is φ = 12112548.

The previous prime is 12112531. The next prime is 12112561. The reversal of 12112549 is 94521121.

It is a happy number.

12112549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11730625 + 381924 = 3425^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112549 - 2¹⁹ = 11588261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12112049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056274 + 6056275.

It is an arithmetic number, because the mean of its divisors is an integer number (6056275).

Almost surely, 2^12112549 is an apocalyptic number.

It is an amenable number.

12112549 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112549 is an equidigital number, since it uses as much as digits as its factorization.

12112549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 25.

The square root of 12112549 is about 3480.3087506714. The cubic root of 12112549 is about 229.6563803983.

The spelling of 12112549 in words is "twelve million, one hundred twelve thousand, five hundred forty-nine".