Yes, you can. Nautilus is 510 threaded!
Having said that, don't give up on the Subtank mini too soon. Watch some video reviews, pbusardo is always good and informative. The Subtank is very versatile and comes with two kinds of replaceable coils and an RBA deck; the vertical coils are very similar in construction to Nautilus's coils. Just adjust the wattage and airflow to your liking.
Good luck!