1442842897 has 2 divisors, whose sum is σ = 1442842898. Its totient is φ = 1442842896.

The previous prime is 1442842859. The next prime is 1442842939. The reversal of 1442842897 is 7982482441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1397563456 + 45279441 = 37384^2 + 6729^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442842897 - 2¹⁵ = 1442810129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1442842897.

It is not a weakly prime, because it can be changed into another prime (1442842837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721421448 + 721421449.

It is an arithmetic number, because the mean of its divisors is an integer number (721421449).

Almost surely, 2^1442842897 is an apocalyptic number.

It is an amenable number.

1442842897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442842897 is an equidigital number, since it uses as much as digits as its factorization.

1442842897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1032192, while the sum is 49.

The square root of 1442842897 is about 37984.7719092796. The cubic root of 1442842897 is about 1129.9858762951.

The spelling of 1442842897 in words is "one billion, four hundred forty-two million, eight hundred forty-two thousand, eight hundred ninety-seven".