Number 121
The number 121 is a perfect square (11²), a palindrome. It has 3 divisors and a digital root of 4. Explore its full properties below, or find words and phrases with a gematria value of 121.
121
Divisors: 3
1, 11, 121
Sum: 133
Prev Star: 73
5th Star Number
Next Star: 181
Prev Square: 100
11th Square Number
Next Square: 144
Prev Palindromic: 111
22nd Palindromic Number
Next Palindromic: 131
Mathematical Properties
Golden Numbern/a
Reduced Digit Sum4
Magic Constant885,841
Digital Root4
Octal81(171)
Duodecimal169(a1)
Hexadecimal289(79)
Binary1111001
121st Values
Prime661
Triangular7,381
Square14,641
Star87,121
Pentagonal21,901
Cube1,771,561
Tetrahedral302,621
Square Pyramidal597,861
Fibonaccin/a
Harshad460
Happy Number910