1444042141 has 2 divisors, whose sum is σ = 1444042142. Its totient is φ = 1444042140.

The previous prime is 1444042139. The next prime is 1444042157. The reversal of 1444042141 is 1412404441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1139400025 + 304642116 = 33755^2 + 17454^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444042141 - 2¹ = 1444042139 is a prime.

Together with 1444042139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444042121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722021070 + 722021071.

It is an arithmetic number, because the mean of its divisors is an integer number (722021071).

Almost surely, 2^1444042141 is an apocalyptic number.

It is an amenable number.

1444042141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444042141 is an equidigital number, since it uses as much as digits as its factorization.

1444042141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 1444042141 is about 38000.5544827967. The cubic root of 1444042141 is about 1130.2988587439.

Adding to 1444042141 its reverse (1412404441), we get a palindrome (2856446582).

The spelling of 1444042141 in words is "one billion, four hundred forty-four million, forty-two thousand, one hundred forty-one".