numéro
number (identifier for a person, place, item, etc.)
phone number
house number
issue number (of a magazine)
or other labeled number
T'as pas changé de numéro ?
You haven't changed your number?
a character
an eccentric or funny person
an act, stunt or performance (in a show or informal context)
Il est vraiment incroyable ce mec, c'est un sacré numéro.
That guy is unbelievable — he's quite a character.
Notes
GENERAL INFO
Numéro is a masculine noun meaning "number." It refers to a specific digit or sequence of digits used for identification or ordering, like a phone number, a house number, or an issue number of a magazine.
USAGE
You use numéro when asking for or giving contact details: "Quel est ton numéro de téléphone ?" (What's your phone number?). It's also used for sequence: "le numéro un" (number one).
