1223245589 has 2 divisors, whose sum is σ = 1223245590. Its totient is φ = 1223245588.

The previous prime is 1223245577. The next prime is 1223245649. The reversal of 1223245589 is 9855423221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 709316689 + 513928900 = 26633^2 + 22670^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223245589 - 2⁸ = 1223245333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223245519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611622794 + 611622795.

It is an arithmetic number, because the mean of its divisors is an integer number (611622795).

Almost surely, 2^1223245589 is an apocalyptic number.

It is an amenable number.

1223245589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223245589 is an equidigital number, since it uses as much as digits as its factorization.

1223245589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The square root of 1223245589 is about 34974.9280056443. The cubic root of 1223245589 is about 1069.4764343946.

The spelling of 1223245589 in words is "one billion, two hundred twenty-three million, two hundred forty-five thousand, five hundred eighty-nine".