12112554 has 16 divisors (see below), whose sum is σ = 24272640. Its totient is φ = 4029600.

The previous prime is 12112549. The next prime is 12112561. The reversal of 12112554 is 45521121.

12112554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12112554.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1927 + ... + 5285.

It is an arithmetic number, because the mean of its divisors is an integer number (1517040).

Almost surely, 2^12112554 is an apocalyptic number.

12112554 is an abundant number, since it is smaller than the sum of its proper divisors (12160086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112554 is a wasteful number, since it uses less digits than its factorization.

12112554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3965.

The product of its digits is 400, while the sum is 21.

The square root of 12112554 is about 3480.3094689984. The cubic root of 12112554 is about 229.6564119987.

Adding to 12112554 its reverse (45521121), we get a palindrome (57633675).

The spelling of 12112554 in words is "twelve million, one hundred twelve thousand, five hundred fifty-four".