11187 has 12 divisors (see below), whose sum is σ = 17784. Its totient is φ = 6720.

The previous prime is 11177. The next prime is 11197. The reversal of 11187 is 78111.

It is an interprime number because it is at equal distance from previous prime (11177) and next prime (11197).

It is not a de Polignac number, because 11187 - 2⁴ = 11171 is a prime.

It is a plaindrome in base 15.

It is a nialpdrome in base 7 and base 14.

It is not an unprimeable number, because it can be changed into a prime (11117) 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, 43 + ... + 155.

It is an arithmetic number, because the mean of its divisors is an integer number (1482).

2¹¹¹⁸⁷ is an apocalyptic number.

11187 is a deficient number, since it is larger than the sum of its proper divisors (6597).

11187 is a wasteful number, since it uses less digits than its factorization.

11187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 127 counting only the distinct ones).

The product of its digits is 56, while the sum is 18.

The square root of 11187 is about 105.7686153828. The cubic root of 11187 is about 22.3651189686.

Adding to 11187 its reverse (78111), we get a palindrome (89298).

The spelling of 11187 in words is "eleven thousand, one hundred eighty-seven".