12112553 has 4 divisors (see below), whose sum is σ = 12125700. Its totient is φ = 12099408.

The previous prime is 12112549. The next prime is 12112561. The reversal of 12112553 is 35521121.

It is a happy number.

12112553 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11343424 + 769129 = 3368^2 + 877^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112553 - 2² = 12112549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12112453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5078 + ... + 7071.

It is an arithmetic number, because the mean of its divisors is an integer number (3031425).

Almost surely, 2^12112553 is an apocalyptic number.

It is an amenable number.

12112553 is a deficient number, since it is larger than the sum of its proper divisors (13147).

12112553 is an equidigital number, since it uses as much as digits as its factorization.

12112553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13146.

The product of its digits is 300, while the sum is 20.

The square root of 12112553 is about 3480.3093253330. The cubic root of 12112553 is about 229.6564056786.

Adding to 12112553 its reverse (35521121), we get a palindrome (47633674).

The spelling of 12112553 in words is "twelve million, one hundred twelve thousand, five hundred fifty-three".