如何从整数中获取唯一的短字符串？

Say, I have a customers with a integer PK. In my web apps I want to have a profile page for them. I do not want a url like /profile/10375/ (For example, I do not want others to know how many customers I have). I also do not want a slug base url like, /profile/acme_corp/.Say, I have a customers with a integer PK. In m