Russia, officiallythe Russian Federation, is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects. Russia is the largest country in the world, covering more than one-eighth of the Earth's inhabited land area. Russia is also the world's ninth most populous nation with 143 million people as of 2012. Extending across the whole of northern Asia, Russia spans nine time zones and incorporates a wide range of environments and landforms.