1422443509 has 2 divisors, whose sum is σ = 1422443510. Its totient is φ = 1422443508.

The previous prime is 1422443501. The next prime is 1422443527. The reversal of 1422443509 is 9053442241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1384584100 + 37859409 = 37210^2 + 6153^2 .

It is a cyclic number.

It is not a de Polignac number, because 1422443509 - 2³ = 1422443501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422443501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711221754 + 711221755.

It is an arithmetic number, because the mean of its divisors is an integer number (711221755).

Almost surely, 2^1422443509 is an apocalyptic number.

It is an amenable number.

1422443509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422443509 is an equidigital number, since it uses as much as digits as its factorization.

1422443509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1422443509 is about 37715.2954250659. The cubic root of 1422443509 is about 1124.6352091995.

The spelling of 1422443509 in words is "one billion, four hundred twenty-two million, four hundred forty-three thousand, five hundred nine".