Most US carriers will not let you choose your number any more. You would need to buy a number from a number broker or from another service and port your number in. You might try Google Voice or Yahoo Voice first.
How do I choose the right phone number?
The caller is far less likely to misdial the number because the digits are right there in front of them, and they can be just as memorable as words. Generally, you want to look for a number with as many repeating digits as possible or patterns, especially alternating patterns. Pick a good number.
Is there a messaging app that uses a different number?
2ndLine. 2ndLine is a full-featured business phone system that you can use in addition to your personal phone number. The app is available in the U.S. and Canada and lets you call and message from a different number on the devices you and your employees own, either via Wi-Fi or your existing cellular network.
Is there a way to disguise your phone number when texting?
The most well-known vertical service code in North America is *67. If you want to hide your number and make a private call, just dial *67 before entering the destination number you want to contact.