Russia, or the Russian Federation, is a country spanning Eastern Europe and Northern Asia. It is the largest country in the world, covering 17,125,191 square kilometres (6,612,073 sq mi) and encompassing more than one-eighth of the Earth's inhabited land area. It extends across eleven time zones, and has borders with sixteen sovereign nations. Russia has a population of 146.2 million; it is the most populous country in Europe, and the ninth-most populous country in the world. Moscow, the capital, is the largest city in Europe, while Saint Petersburg is the nation's second-largest city and cultural centre. Russians are the largest Slavic and European nation; they speak Russian, the most spoken Slavic language, and the most spoken native language in Europe.