The number 8 18 1 consists of four identical numbers, which is easier to remember and identify. In addition, 8 18 1 has some auspicious meanings, such as getting rich, lifelong, wanting (good) and so on. 8 18 1 is a good choice when choosing lucky numbers, phone numbers or license plates. But it should be noted that this is only a personal preference and belief, which varies from person to person.