1422563381 has 2 divisors, whose sum is σ = 1422563382. Its totient is φ = 1422563380.

The previous prime is 1422563377. The next prime is 1422563413. The reversal of 1422563381 is 1833652241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 718722481 + 703840900 = 26809^2 + 26530^2 .

It is an emirp because it is prime and its reverse (1833652241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1422563381 - 2² = 1422563377 is a prime.

It is a super-2 number, since 2×1422563381² = 4047373145924302322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422563321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711281690 + 711281691.

It is an arithmetic number, because the mean of its divisors is an integer number (711281691).

Almost surely, 2^1422563381 is an apocalyptic number.

It is an amenable number.

1422563381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422563381 is an equidigital number, since it uses as much as digits as its factorization.

1422563381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 1422563381 is about 37716.8845611617. The cubic root of 1422563381 is about 1124.6668000229. Note that the first 3 decimals are identical.

The spelling of 1422563381 in words is "one billion, four hundred twenty-two million, five hundred sixty-three thousand, three hundred eighty-one".