12112749 has 24 divisors (see below), whose sum is σ = 19749600. Its totient is φ = 7086240.

The previous prime is 12112741. The next prime is 12112769. The reversal of 12112749 is 94721121.

It is not a de Polignac number, because 12112749 - 2³ = 12112741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 762 + ... + 4980.

It is an arithmetic number, because the mean of its divisors is an integer number (822900).

Almost surely, 2^12112749 is an apocalyptic number.

It is an amenable number.

12112749 is a deficient number, since it is larger than the sum of its proper divisors (7636851).

12112749 is a wasteful number, since it uses less digits than its factorization.

12112749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265 (or 4262 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 12112749 is about 3480.3374836357. The cubic root of 12112749 is about 229.6576444049.

The spelling of 12112749 in words is "twelve million, one hundred twelve thousand, seven hundred forty-nine".