1442071243 has 2 divisors, whose sum is σ = 1442071244. Its totient is φ = 1442071242.

The previous prime is 1442071231. The next prime is 1442071247. The reversal of 1442071243 is 3421702441.

It is a strong prime.

It is an emirp because it is prime and its reverse (3421702441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1442071243 - 2⁹ = 1442070731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1442071247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721035621 + 721035622.

It is an arithmetic number, because the mean of its divisors is an integer number (721035622).

Almost surely, 2^1442071243 is an apocalyptic number.

1442071243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442071243 is an equidigital number, since it uses as much as digits as its factorization.

1442071243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1442071243 is about 37974.6131382533. The cubic root of 1442071243 is about 1129.7843959134.

Adding to 1442071243 its reverse (3421702441), we get a palindrome (4863773684).

The spelling of 1442071243 in words is "one billion, four hundred forty-two million, seventy-one thousand, two hundred forty-three".