One hundred (and) fifty-three is the natural number following one hundred (and) fifty-two and preceding one hundred (and) fifty-four. As a triangular number, it is the sum of the first 17 integers, and also the sum of the first five factorials. (It is also a hexagonal number). It is a Harshad number. Since 153 = 1^3 + 5^3 + 3^3, it is a 3-narcissistic number, and it is a Friedman number since 153 = 3 * 51.
One hundred (and) fifty-three is also
- The number of fish caught by Simon Peter, "yet the net was not broken" (Holy Bible, John 21:11).
- Considered by St. Augustine to represent seven gifts of the Holy Spirit and ten requirements of God
- the frequency of the longwave transmitters Donebach, Ingoy and Brasov in kilohertz.
For the year, see AD 153.