Numerology (also known as arithmancy) is the pseudoscientific belief in an occult, divine or mystical relationship between a number and one or more coinciding events. It is also the study of the numerical value, via an alphanumeric system, of the letters in words and names. When numerology is applied to a person’s name, it is a form of onomancy. It is often associated with the paranormal, alongside astrology and similar to divinatory arts.