The Republic of Indonesia (Indonesian: Republik Indonesia), is a nation in Southeast Asia. Comprising 17,508 islands, it is the world's largest archipelagic state. With a population of over 234 million people, it is the world's fourth most populous country and the most populous Muslim-majority nation, although officially it is not an Islamic state. Indonesia is a republic, with an elected parliament and president. The nation's capital city is Jakarta. The country shares land borders with Papua New Guinea, East Timor and Malaysia. Other neighboring countries include Singapore, the Philippines, Australia, and the Indian territory of the Andaman and Nicobar Islands. It is considered the largest territory in that region.