144421143 has 4 divisors (see below), whose sum is σ = 192561528. Its totient is φ = 96280760.

The previous prime is 144421127. The next prime is 144421159. The reversal of 144421143 is 341124441.

144421143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (144421127) and next prime (144421159).

It is a cyclic number.

It is not a de Polignac number, because 144421143 - 2⁴ = 144421127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144421843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24070188 + ... + 24070193.

It is an arithmetic number, because the mean of its divisors is an integer number (48140382).

Almost surely, 2^144421143 is an apocalyptic number.

144421143 is a deficient number, since it is larger than the sum of its proper divisors (48140385).

144421143 is an equidigital number, since it uses as much as digits as its factorization.

144421143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48140384.

The product of its digits is 1536, while the sum is 24.

The square root of 144421143 is about 12017.5348137628. The cubic root of 144421143 is about 524.6587569294.

Adding to 144421143 its reverse (341124441), we get a palindrome (485545584).

The spelling of 144421143 in words is "one hundred forty-four million, four hundred twenty-one thousand, one hundred forty-three".