1442443117 has 2 divisors, whose sum is σ = 1442443118. Its totient is φ = 1442443116.

The previous prime is 1442443097. The next prime is 1442443129. The reversal of 1442443117 is 7113442441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1434439876 + 8003241 = 37874^2 + 2829^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442443117 - 2¹⁵ = 1442410349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442443417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721221558 + 721221559.

It is an arithmetic number, because the mean of its divisors is an integer number (721221559).

Almost surely, 2^1442443117 is an apocalyptic number.

It is an amenable number.

1442443117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442443117 is an equidigital number, since it uses as much as digits as its factorization.

1442443117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 31.

The square root of 1442443117 is about 37979.5091727105. The cubic root of 1442443117 is about 1129.8815019187.

Adding to 1442443117 its reverse (7113442441), we get a palindrome (8555885558).

The spelling of 1442443117 in words is "one billion, four hundred forty-two million, four hundred forty-three thousand, one hundred seventeen".