I don't know in the rest of the world but here in Argentina at least there is a sort of thing with the lottery that some numbers have a "meaning"

The idea is that if you dream about something you bet some money to the number that represent that (weird, but I don't make the rules lol)

So for example 15 is the "pretty gril" (niña bonita), 32 is money (dinero) 22 the crazy (el loco) and o on...