Yes, it generally means one is pretty smart. Still being that smart is NO guarantee of fortune or happiness. There are quite a few people with high IQ's in prisons and mental institutions. Also if you are talking about yourself, you may not want to rub it in people's faces that your IQ is that high. I will admit I am a coward and I do not want to take an IQ test because I suspect it is not as high as I would like it to be. But I do believe it IS possible to "study" for such a test, but I am waaaay to lazy to do that. (I would rather waste my time on Ask.com)
I think you just asked this to show off your above-average IQ score That is, if you even scored that high. Having a high IQ generally says, "yes, you're smart" but there's much more to intelligence than a single test. So if you scored lower and closer to the average, that doesn't mean you couldn't still be a genius in some other way.