111140681 has 8 divisors (see below), whose sum is σ = 114485184. Its totient is φ = 107830800.

The previous prime is 111140657. The next prime is 111140683. The reversal of 111140681 is 186041111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111140681 is a prime.

It is a super-2 number, since 2×111140681² = 24704501946287522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111140683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2066 + ... + 15051.

It is an arithmetic number, because the mean of its divisors is an integer number (14310648).

Almost surely, 2^111140681 is an apocalyptic number.

It is an amenable number.

111140681 is a deficient number, since it is larger than the sum of its proper divisors (3344503).

111140681 is a wasteful number, since it uses less digits than its factorization.

111140681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17311.

The product of its (nonzero) digits is 192, while the sum is 23.

The square root of 111140681 is about 10542.3280635731. The cubic root of 111140681 is about 480.7925001460.

Adding to 111140681 its reverse (186041111), we get a palindrome (297181792).

The spelling of 111140681 in words is "one hundred eleven million, one hundred forty thousand, six hundred eighty-one".