111867 has 12 divisors (see below), whose sum is σ = 173736. Its totient is φ = 63840.

The previous prime is 111863. The next prime is 111869. The reversal of 111867 is 768111.

It is not a de Polignac number, because 111867 - 2² = 111863 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (111863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234 + ... + 527.

It is an arithmetic number, because the mean of its divisors is an integer number (14478).

2¹¹¹⁸⁶⁷ is an apocalyptic number.

111867 is a deficient number, since it is larger than the sum of its proper divisors (61869).

111867 is an equidigital number, since it uses as much as digits as its factorization.

111867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 771 counting only the distinct ones).

The product of its digits is 336, while the sum is 24.

The square root of 111867 is about 334.4652448312. The cubic root of 111867 is about 48.1837574330.

Adding to 111867 its reverse (768111), we get a palindrome (879978).

The spelling of 111867 in words is "one hundred eleven thousand, eight hundred sixty-seven".