Dreaming of lottery numbers is read as a hope for sudden change or relief from pressure. Dream tradition treats it as a wish, never as a set of numbers to play.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.