111140 has 12 divisors (see below), whose sum is σ = 233436. Its totient is φ = 44448.

The previous prime is 111127. The next prime is 111143. The reversal of 111140 is 41111.

It can be written as a sum of positive squares in 2 ways, for example, as 77284 + 33856 = 278^2 + 184^2 .

It is not an unprimeable number, because it can be changed into a prime (111143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2759 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (19453).

2¹¹¹¹⁴⁰ is an apocalyptic number.

111140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111140 is an abundant number, since it is smaller than the sum of its proper divisors (122296).

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

111140 is a wasteful number, since it uses less digits than its factorization.

111140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566 (or 5564 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 111140 is about 333.3766638504. The cubic root of 111140 is about 48.0791518146.

Adding to 111140 its reverse (41111), we get a palindrome (152251).

The spelling of 111140 in words is "one hundred eleven thousand, one hundred forty", and thus it is an iban number.