111688214 has 16 divisors (see below), whose sum is σ = 183418560. Its totient is φ = 50585160.

The previous prime is 111688201. The next prime is 111688229. The reversal of 111688214 is 412886111.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2744 + ... + 15195.

It is an arithmetic number, because the mean of its divisors is an integer number (11463660).

Almost surely, 2^111688214 is an apocalyptic number.

111688214 is a deficient number, since it is larger than the sum of its proper divisors (71730346).

111688214 is a wasteful number, since it uses less digits than its factorization.

111688214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18235.

The product of its digits is 3072, while the sum is 32.

The square root of 111688214 is about 10568.2644743591. The cubic root of 111688214 is about 481.5807462925.

The spelling of 111688214 in words is "one hundred eleven million, six hundred eighty-eight thousand, two hundred fourteen".