144221103 has 12 divisors (see below), whose sum is σ = 224344120. Its totient is φ = 88751376.

The previous prime is 144221101. The next prime is 144221107. The reversal of 144221103 is 301122441.

144221103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144221103 - 2¹ = 144221101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144221101) 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, 616213 + ... + 616446.

Almost surely, 2^144221103 is an apocalyptic number.

144221103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

144221103 is a deficient number, since it is larger than the sum of its proper divisors (80123017).

144221103 is a wasteful number, since it uses less digits than its factorization.

144221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232678 (or 1232675 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 144221103 is about 12009.2090913598. The cubic root of 144221103 is about 524.4164072980.

Adding to 144221103 its reverse (301122441), we get a palindrome (445343544).

The spelling of 144221103 in words is "one hundred forty-four million, two hundred twenty-one thousand, one hundred three".