12235889 has 2 divisors, whose sum is σ = 12235890. Its totient is φ = 12235888.

The previous prime is 12235849. The next prime is 12235891. The reversal of 12235889 is 98853221.

12235889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7656289 + 4579600 = 2767^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 12235889 - 2²⁰ = 11187313 is a prime.

Together with 12235891, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (12235819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6117944 + 6117945.

It is an arithmetic number, because the mean of its divisors is an integer number (6117945).

Almost surely, 2^12235889 is an apocalyptic number.

It is an amenable number.

12235889 is a deficient number, since it is larger than the sum of its proper divisors (1).

12235889 is an equidigital number, since it uses as much as digits as its factorization.

12235889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 12235889 is about 3497.9835619968. The cubic root of 12235889 is about 230.4332664900.

The spelling of 12235889 in words is "twelve million, two hundred thirty-five thousand, eight hundred eighty-nine".