1422441997 has 2 divisors, whose sum is σ = 1422441998. Its totient is φ = 1422441996.

The previous prime is 1422441989. The next prime is 1422442001. The reversal of 1422441997 is 7991442241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1130237161 + 292204836 = 33619^2 + 17094^2 .

It is an emirp because it is prime and its reverse (7991442241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1422441997 - 2³ = 1422441989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422441947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711220998 + 711220999.

It is an arithmetic number, because the mean of its divisors is an integer number (711220999).

Almost surely, 2^1422441997 is an apocalyptic number.

It is an amenable number.

1422441997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422441997 is an equidigital number, since it uses as much as digits as its factorization.

1422441997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 1422441997 is about 37715.2753801427. The cubic root of 1422441997 is about 1124.6348107188.

The spelling of 1422441997 in words is "one billion, four hundred twenty-two million, four hundred forty-one thousand, nine hundred ninety-seven".