111144242 has 16 divisors (see below), whose sum is σ = 182038752. Its totient is φ = 50473920.

The previous prime is 111144239. The next prime is 111144277. The reversal of 111144242 is 242441111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37673 + ... + 40515.

It is an arithmetic number, because the mean of its divisors is an integer number (11377422).

Almost surely, 2^111144242 is an apocalyptic number.

111144242 is a deficient number, since it is larger than the sum of its proper divisors (70894510).

111144242 is a wasteful number, since it uses less digits than its factorization.

111144242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633.

The product of its digits is 256, while the sum is 20.

The square root of 111144242 is about 10542.4969528096. The cubic root of 111144242 is about 480.7976350309.

Adding to 111144242 its reverse (242441111), we get a palindrome (353585353).

The spelling of 111144242 in words is "one hundred eleven million, one hundred forty-four thousand, two hundred forty-two".