CREATE TABLE table_71306 ("Member countries" TEXT, "Population" TEXT, "Area  ( km\\u00b2 ) " TEXT, "GDP  ( billion US$ ) " TEXT, "GDP per capita  ( US$ ) " TEXT)

What is the name of the member country that has a Population of 1,341,664?
SELECT "Member countries" FROM table_71306 WHERE "Population" = '1,341,664'
SELECT "Member countries" FROM "table_71306" WHERE "Population" = '1,341,664'