Given the task definition and input, reply with output. In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.

[-18.504, 31, 23, -58, -34, -0.825, -87, -12.556]

[31, 23, -58, -34, -87]