Is an IQ of 154 good?

Hi. So is my iq good? I can calculate two digit times two digit numbers in my head (ex. 94x97), I can speak five different languages and i am good at violin, math, some science, art, and tennis. I also like doing sudoku. However, i am kinda average in chess and rubix cubes. I am only going to tell you that i am in high school.