112187 has 4 divisors (see below), whose sum is σ = 114840. Its totient is φ = 109536.

The previous prime is 112181. The next prime is 112199. The reversal of 112187 is 781211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112187 - 2¹⁴ = 95803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262 + ... + 1347.

It is an arithmetic number, because the mean of its divisors is an integer number (28710).

2¹¹²¹⁸⁷ is an apocalyptic number.

112187 is a deficient number, since it is larger than the sum of its proper divisors (2653).

112187 is an equidigital number, since it uses as much as digits as its factorization.

112187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652.

The product of its digits is 112, while the sum is 20.

The square root of 112187 is about 334.9432787802. The cubic root of 112187 is about 48.2296575455.

Adding to 112187 its reverse (781211), we get a palindrome (893398).

The spelling of 112187 in words is "one hundred twelve thousand, one hundred eighty-seven".