The Personality Number is a concept in numerology that represents the outward expression of an individual’s personality. It is derived from the consonants in a person's full name at birth, revealing how they are perceived by others. This number can provide insights into one's social behavior, communication style, and overall presence in the world. To calculate the Personality Number, each consonant in the name is assigned a numerical value based on the Pythagorean numerology system. The values are then summed and reduced to a single digit or a master number. This number can help individuals understand their strengths and challenges in social interactions.