12112518 has 16 divisors (see below), whose sum is σ = 26427456. Its totient is φ = 3670440.

The previous prime is 12112501. The next prime is 12112531. The reversal of 12112518 is 81521121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12112494 and 12112503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91696 + ... + 91827.

It is an arithmetic number, because the mean of its divisors is an integer number (1651716).

Almost surely, 2^12112518 is an apocalyptic number.

12112518 is an abundant number, since it is smaller than the sum of its proper divisors (14314938).

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

12112518 is a wasteful number, since it uses less digits than its factorization.

12112518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183539.

The product of its digits is 160, while the sum is 21.

The square root of 12112518 is about 3480.3042970407. The cubic root of 12112518 is about 229.6561844761.

Adding to 12112518 its reverse (81521121), we get a palindrome (93633639).

The spelling of 12112518 in words is "twelve million, one hundred twelve thousand, five hundred eighteen".