12229589 has 2 divisors, whose sum is σ = 12229590. Its totient is φ = 12229588.

The previous prime is 12229571. The next prime is 12229601. The reversal of 12229589 is 98592221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10176100 + 2053489 = 3190^2 + 1433^2 .

It is a cyclic number.

It is not a de Polignac number, because 12229589 - 2⁸ = 12229333 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12229519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6114794 + 6114795.

It is an arithmetic number, because the mean of its divisors is an integer number (6114795).

Almost surely, 2^12229589 is an apocalyptic number.

It is an amenable number.

12229589 is a deficient number, since it is larger than the sum of its proper divisors (1).

12229589 is an equidigital number, since it uses as much as digits as its factorization.

12229589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 38.

The square root of 12229589 is about 3497.0829272409. The cubic root of 12229589 is about 230.3937112983.

The spelling of 12229589 in words is "twelve million, two hundred twenty-nine thousand, five hundred eighty-nine".