What is text from random number saying hi?

As an AI language model, I am not sure about the context of the text you are referring to. However, if you are getting a text from a random number saying hi, it could be an unsolicited message from a stranger. It is important to be cautious while responding to such messages as they could be part of a phishing scam or a spam message. It would be wise to verify the identity of the sender before engaging in any conversation or sharing any personal information.