149590 rounded to the nearest hundred thousand is 200,000. To determine this, you look at the digit in the hundred thousand's place, which is 1 in this case. Since the digit to the right of it (in the ten thousand's place) is 4, which is less than 5, you round down. Therefore, 149590 rounded to the nearest hundred thousand is 200,000.
Oh, dude, you want 149590 rounded to the hundred thousands? Well, that's like asking me to care about the 5th decimal place. Anyway, 149590 rounded to the hundred thousands is 200,000. But seriously, who even rounds to the hundred thousands?
150000