12243089 has 4 divisors (see below), whose sum is σ = 12527856. Its totient is φ = 11958324.

The previous prime is 12243079. The next prime is 12243103. The reversal of 12243089 is 98034221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12243089 - 2¹⁶ = 12177553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12243019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142319 + ... + 142404.

It is an arithmetic number, because the mean of its divisors is an integer number (3131964).

Almost surely, 2^12243089 is an apocalyptic number.

It is an amenable number.

12243089 is a deficient number, since it is larger than the sum of its proper divisors (284767).

12243089 is an equidigital number, since it uses as much as digits as its factorization.

12243089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284766.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 12243089 is about 3499.0125749988. The cubic root of 12243089 is about 230.4784558015.

The spelling of 12243089 in words is "twelve million, two hundred forty-three thousand, eighty-nine".