7185 has 8 divisors (see below), whose sum is σ = 11520. Its totient is φ = 3824.

The previous prime is 7177. The next prime is 7187. The reversal of 7185 is 5817.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7185 - 2³ = 7177 is a prime.

It is a plaindrome in base 13.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (7187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225 + ... + 254.

It is an arithmetic number, because the mean of its divisors is an integer number (1440).

2⁷¹⁸⁵ is an apocalyptic number.

It is an amenable number.

7185 is a deficient number, since it is larger than the sum of its proper divisors (4335).

7185 is a wasteful number, since it uses less digits than its factorization.

7185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487.

The product of its digits is 280, while the sum is 21.

The square root of 7185 is about 84.7643793111. The cubic root of 7185 is about 19.2963687943.

The spelling of 7185 in words is "seven thousand, one hundred eighty-five".