1422023557 has 2 divisors, whose sum is σ = 1422023558. Its totient is φ = 1422023556.

The previous prime is 1422023513. The next prime is 1422023563. The reversal of 1422023557 is 7553202241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1420837636 + 1185921 = 37694^2 + 1089^2 .

It is a cyclic number.

It is not a de Polignac number, because 1422023557 - 2¹¹ = 1422021509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422023597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711011778 + 711011779.

It is an arithmetic number, because the mean of its divisors is an integer number (711011779).

Almost surely, 2^1422023557 is an apocalyptic number.

It is an amenable number.

1422023557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422023557 is an equidigital number, since it uses as much as digits as its factorization.

1422023557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1422023557 is about 37709.7276176851. The cubic root of 1422023557 is about 1124.5245219001.

Adding to 1422023557 its reverse (7553202241), we get a palindrome (8975225798).

The spelling of 1422023557 in words is "one billion, four hundred twenty-two million, twenty-three thousand, five hundred fifty-seven".