It is also the prize for correctly answering the first two questions in some national editions of the game show Who Wants to Be a Millionaire? in the respective local currency, and the prize for correctly answering the first three questions in the German game show Wer wird Millionär? in euros.
Finally, section 200 of the Irish Copyright and Related Rights Act, 2000 provides for perpetual copyright protection of Irish currency designs and forbids any use of it without explicit permission from the relevant authorities.
It is also the number of possible rook moves in 5×5 minichess.