111606140 has 12 divisors (see below), whose sum is σ = 234372936. Its totient is φ = 44642448.

The previous prime is 111606101. The next prime is 111606151. The reversal of 111606140 is 41606111.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5580307 = 111606140 / (1 + 1 + 1 + 6 + 0 + 6 + 1 + 4 + 0).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2790134 + ... + 2790173.

It is an arithmetic number, because the mean of its divisors is an integer number (19531078).

Almost surely, 2^111606140 is an apocalyptic number.

111606140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111606140 is an abundant number, since it is smaller than the sum of its proper divisors (122766796).

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

111606140 is a wasteful number, since it uses less digits than its factorization.

111606140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580316 (or 5580314 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 111606140 is about 10564.3807201369. The cubic root of 111606140 is about 481.4627543027.

The spelling of 111606140 in words is "one hundred eleven million, six hundred six thousand, one hundred forty".