12245789 has 4 divisors (see below), whose sum is σ = 12257340. Its totient is φ = 12234240.

The previous prime is 12245767. The next prime is 12245819. The reversal of 12245789 is 98754221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5784025 + 6461764 = 2405^2 + 2542^2 .

It is a cyclic number.

It is not a de Polignac number, because 12245789 - 2⁸ = 12245533 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12245719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4004 + ... + 6365.

It is an arithmetic number, because the mean of its divisors is an integer number (3064335).

Almost surely, 2^12245789 is an apocalyptic number.

It is an amenable number.

12245789 is a deficient number, since it is larger than the sum of its proper divisors (11551).

12245789 is a wasteful number, since it uses less digits than its factorization.

12245789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11550.

The product of its digits is 40320, while the sum is 38.

The square root of 12245789 is about 3499.3983768642. The cubic root of 12245789 is about 230.4953972257.

The spelling of 12245789 in words is "twelve million, two hundred forty-five thousand, seven hundred eighty-nine".