11112144 has 20 divisors (see below), whose sum is σ = 28706496. Its totient is φ = 3704032.

The previous prime is 11112137. The next prime is 11112149. The reversal of 11112144 is 44121111.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 115704 + ... + 115799.

Almost surely, 2^11112144 is an apocalyptic number.

It is an amenable number.

11112144 is an abundant number, since it is smaller than the sum of its proper divisors (17594352).

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

11112144 is a wasteful number, since it uses less digits than its factorization.

11112144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231514 (or 231508 counting only the distinct ones).

The product of its digits is 32, while the sum is 15.

The square root of 11112144 is about 3333.4882630662. The cubic root of 11112144 is about 223.1512309784.

Adding to 11112144 its reverse (44121111), we get a palindrome (55233255).

The spelling of 11112144 in words is "eleven million, one hundred twelve thousand, one hundred forty-four".