1442522317 has 2 divisors, whose sum is σ = 1442522318. Its totient is φ = 1442522316.

The previous prime is 1442522309. The next prime is 1442522357. The reversal of 1442522317 is 7132252441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 886788841 + 555733476 = 29779^2 + 23574^2 .

It is an emirp because it is prime and its reverse (7132252441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1442522317 - 2³ = 1442522309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442522357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721261158 + 721261159.

It is an arithmetic number, because the mean of its divisors is an integer number (721261159).

Almost surely, 2^1442522317 is an apocalyptic number.

It is an amenable number.

1442522317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442522317 is an equidigital number, since it uses as much as digits as its factorization.

1442522317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 1442522317 is about 37980.5518259016. The cubic root of 1442522317 is about 1129.9021809496.

Adding to 1442522317 its reverse (7132252441), we get a palindrome (8574774758).

The spelling of 1442522317 in words is "one billion, four hundred forty-two million, five hundred twenty-two thousand, three hundred seventeen".