Hmmm: i becomes 5, o becomes 6, k becomes 2, m becomes 0. I bet if you typed mjkluio it would come out 0123456. This means your keyboard is in a funny “fake 10-key” mode.
This is common on laptops or compact keyboards that save space by leaving the number pad off. I have one here, for example, which has a “fn” key, and if I hit fn-numlock, the keyboard flops over into a mode just like the one you describe.
So look for some key combination which would enable that. It’s usually hard to find on laptops, because they try to get cute and make an “intuitive” icon for “whack out my keyboard” which is impossible to comprehend. For example, I think the icon for this on an old toshiba laptop I had was nine dots arranged in a square.