144303121 has 2 divisors, whose sum is σ = 144303122. Its totient is φ = 144303120.

The previous prime is 144303097. The next prime is 144303139. The reversal of 144303121 is 121303441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117418896 + 26884225 = 10836^2 + 5185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144303121 is a prime.

It is not a weakly prime, because it can be changed into another prime (144303151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72151560 + 72151561.

It is an arithmetic number, because the mean of its divisors is an integer number (72151561).

Almost surely, 2^144303121 is an apocalyptic number.

It is an amenable number.

144303121 is a deficient number, since it is larger than the sum of its proper divisors (1).

144303121 is an equidigital number, since it uses as much as digits as its factorization.

144303121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 144303121 is about 12012.6234020717. The cubic root of 144303121 is about 524.5157996733.

Adding to 144303121 its reverse (121303441), we get a palindrome (265606562).

The spelling of 144303121 in words is "one hundred forty-four million, three hundred three thousand, one hundred twenty-one".