111834 has 32 divisors (see below), whose sum is σ = 264000. Its totient is φ = 34992.

The previous prime is 111833. The next prime is 111847. The reversal of 111834 is 438111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972 + ... + 1080.

It is an arithmetic number, because the mean of its divisors is an integer number (8250).

2¹¹¹⁸³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132000).

111834 is an abundant number, since it is smaller than the sum of its proper divisors (152166).

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

111834 is a wasteful number, since it uses less digits than its factorization.

111834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 133 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 111834 is about 334.4159087125. The cubic root of 111834 is about 48.1790190074.

Adding to 111834 its reverse (438111), we get a palindrome (549945).

The spelling of 111834 in words is "one hundred eleven thousand, eight hundred thirty-four".