144403121 has 2 divisors, whose sum is σ = 144403122. Its totient is φ = 144403120.

The previous prime is 144403087. The next prime is 144403139. The reversal of 144403121 is 121304441.

144403121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102010000 + 42393121 = 10100^2 + 6511^2 .

It is a cyclic number.

It is not a de Polignac number, because 144403121 - 2⁶ = 144403057 is a prime.

It is a super-3 number, since 3×144403121³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 144403093 and 144403102.

It is not a weakly prime, because it can be changed into another prime (144403141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72201560 + 72201561.

It is an arithmetic number, because the mean of its divisors is an integer number (72201561).

Almost surely, 2^144403121 is an apocalyptic number.

It is an amenable number.

144403121 is a deficient number, since it is larger than the sum of its proper divisors (1).

144403121 is an equidigital number, since it uses as much as digits as its factorization.

144403121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 144403121 is about 12016.7849693668. The cubic root of 144403121 is about 524.6369323469.

Adding to 144403121 its reverse (121304441), we get a palindrome (265707562).

The spelling of 144403121 in words is "one hundred forty-four million, four hundred three thousand, one hundred twenty-one".