1442037217 has 2 divisors, whose sum is σ = 1442037218. Its totient is φ = 1442037216.

The previous prime is 1442037169. The next prime is 1442037239. The reversal of 1442037217 is 7127302441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1386743121 + 55294096 = 37239^2 + 7436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442037217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1442037517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721018608 + 721018609.

It is an arithmetic number, because the mean of its divisors is an integer number (721018609).

Almost surely, 2^1442037217 is an apocalyptic number.

It is an amenable number.

1442037217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442037217 is an equidigital number, since it uses as much as digits as its factorization.

1442037217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 1442037217 is about 37974.1651257799. The cubic root of 1442037217 is about 1129.7755100033.

Adding to 1442037217 its reverse (7127302441), we get a palindrome (8569339658).

The spelling of 1442037217 in words is "one billion, four hundred forty-two million, thirty-seven thousand, two hundred seventeen".