Just when you think it can’t get any better (although where Ravelry is concerned I don’t think anyone really believes that!) there is now a cool way to find out which # Ravelry member you are.
Have a look at this post in For Love of Ravelry forum.
Once you follow the instructions in the linked post above, you’ll see which member number you are under your “Raveler since” date. Almost palindromic, my number is!