P = phosphorus, atomic number 15

V = vanadium, 23

I = Iodine, 53

So in your password they add up to 167

Actually Pa from "Password" will br Protactinium at 91. I also started off by typing password and had to change the Pa to a smaller element.

Oh man I feel silly, I’ve spent the past few days doing Project Euler puzzles and was fixated on it being a number satisfying special properties