Welcome!
If you don't have documentation as to the last time the timing belt was changed, it definitely needs doing asap. The maintenance interval on it is 105k. So it should have been done twice. Given the mileage I can guarantee it's been done once otherwise it would have blown the engine. Check on the radiator support. There's a sticker there. If it was done by the dealer it'll be marked on that sticker.
If you need to do it, while you're in there, there's a few other thing that get swapped. Water pump, cam seals, and all the gaskets and belts that are removed to get to the timing belt.