@oristarA,
No, apropos means pertinent, as in pertinent to the subject at hand.
A common expression here is "apropos of nothing......." You will then say something that has nothing to do with the subject at hand.
For instance, you and a friend may be talking about politics, and you suddenly think of something you want to say (maybe before you forget). You would say "Apropos of nothing, could you tell me where you get your dog groomed?"
