123456

123456 is a number. It can refer to:


 * 123456 (password), a common password
 * "123456" (song), by Fitz and the Tantrums from the album All the Feels
 * Braille pattern dots-123456
 * 123456, or 123 456, a typical example of specifying a six-digit vehicle license plate number, for instance, as with United States license plate designs and serial formats
 * The first six positive Arabic numerals