Almost 300 million people but it rarely comes up in the news or pop media
They have very little in the way of exported cultural products ("The Raid" films?), are much worse in sports than would be expected based on population, spend relatively little on their military and don't do much in the way of regional power projection, and are growing economically but not remarkably, so there just aren't that many avenues for them to make international news.
I suppose it shouldn't be too surprising though, I mean Christianity sure as hell got around too.