184 = 23 x 23.
184 has a unique representation as a sum of three squares: 184 = 22 + 62 + 122.
184 is the maximum number of regions into which 14 circles divide the plane.
184 is the smallest number that can be written as q * pq + r * pr, where p, q, and r are distinct primes: 184 = 3 x 23 + 5 x 25.
184 is the difference of two square numbers: 184 = 252 - 212.
Source: Prime Curios!