144421103 has 12 divisors (see below), whose sum is σ = 153910152. Its totient is φ = 135488640.

The previous prime is 144421061. The next prime is 144421111. The reversal of 144421103 is 301124441.

It is not a de Polignac number, because 144421103 - 2¹⁰ = 144420079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144421903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121076 + ... + 122262.

It is an arithmetic number, because the mean of its divisors is an integer number (12825846).

Almost surely, 2^144421103 is an apocalyptic number.

144421103 is a deficient number, since it is larger than the sum of its proper divisors (9489049).

144421103 is a wasteful number, since it uses less digits than its factorization.

144421103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1625 counting only the distinct ones).

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

The square root of 144421103 is about 12017.5331495278. The cubic root of 144421103 is about 524.6587084915.

Adding to 144421103 its reverse (301124441), we get a palindrome (445545544).

The spelling of 144421103 in words is "one hundred forty-four million, four hundred twenty-one thousand, one hundred three".