145 = 5 x 29.
145 = 1! + 4! + 5! The only other numbers that are the sum of the factorials of their digits are 1, 2, and 40,585. These numbers are known as factorions.
145 = 1! + 4! + 5! The only other numbers that are the sum of the factorials of their digits are 1, 2, and 40,585. These numbers are known as factorions.
145 is a pentagonal number and a centered square number.
145 is the sum of two squares in two different ways: 145 = 122 + 12 = 82 + 92.
145 is the sum of two squares in two different ways: 145 = 122 + 12 = 82 + 92.
145 is the hypotenuse of two primitive Pythagorean triples: 1452 = 172 + 1442 = 242 + 1432.
Ted Williams hit 31 home runs and had 145 RBI as a rookie in 1939.
Source: Wolfram MathWorld
