1422375641 has 2 divisors, whose sum is σ = 1422375642. Its totient is φ = 1422375640.

The previous prime is 1422375631. The next prime is 1422375659. The reversal of 1422375641 is 1465732241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 829209616 + 593166025 = 28796^2 + 24355^2 .

It is an emirp because it is prime and its reverse (1465732241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1422375641 - 2²⁶ = 1355266777 is a prime.

It is a super-2 number, since 2×1422375641² = 4046304928220321762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1422375611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711187820 + 711187821.

It is an arithmetic number, because the mean of its divisors is an integer number (711187821).

Almost surely, 2^1422375641 is an apocalyptic number.

It is an amenable number.

1422375641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422375641 is an equidigital number, since it uses as much as digits as its factorization.

1422375641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 1422375641 is about 37714.3956732704. The cubic root of 1422375641 is about 1124.6173226178.

The spelling of 1422375641 in words is "one billion, four hundred twenty-two million, three hundred seventy-five thousand, six hundred forty-one".