1222623593 has 2 divisors, whose sum is σ = 1222623594. Its totient is φ = 1222623592.

The previous prime is 1222623583. The next prime is 1222623631. The reversal of 1222623593 is 3953262221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001595904 + 221027689 = 31648^2 + 14867^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222623593 - 2³⁰ = 148881769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1222623583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611311796 + 611311797.

It is an arithmetic number, because the mean of its divisors is an integer number (611311797).

Almost surely, 2^1222623593 is an apocalyptic number.

It is an amenable number.

1222623593 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222623593 is an equidigital number, since it uses as much as digits as its factorization.

1222623593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 1222623593 is about 34966.0348481208. The cubic root of 1222623593 is about 1069.2951345121.

The spelling of 1222623593 in words is "one billion, two hundred twenty-two million, six hundred twenty-three thousand, five hundred ninety-three".