144440111 has 2 divisors, whose sum is σ = 144440112. Its totient is φ = 144440110.

The previous prime is 144440077. The next prime is 144440159. The reversal of 144440111 is 111044441.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144440111 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144440011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72220055 + 72220056.

It is an arithmetic number, because the mean of its divisors is an integer number (72220056).

Almost surely, 2^144440111 is an apocalyptic number.

144440111 is a deficient number, since it is larger than the sum of its proper divisors (1).

144440111 is an equidigital number, since it uses as much as digits as its factorization.

144440111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 144440111 is about 12018.3239680082. The cubic root of 144440111 is about 524.6817251538.

Adding to 144440111 its reverse (111044441), we get a palindrome (255484552).

The spelling of 144440111 in words is "one hundred forty-four million, four hundred forty thousand, one hundred eleven".