12225789 has 8 divisors (see below), whose sum is σ = 18112320. Its totient is φ = 8150508.

The previous prime is 12225779. The next prime is 12225823. The reversal of 12225789 is 98752221.

It is not a de Polignac number, because 12225789 - 2⁵ = 12225757 is a prime.

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 (12225709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226377 + ... + 226430.

It is an arithmetic number, because the mean of its divisors is an integer number (2264040).

Almost surely, 2^12225789 is an apocalyptic number.

It is an amenable number.

12225789 is a deficient number, since it is larger than the sum of its proper divisors (5886531).

12225789 is an equidigital number, since it uses as much as digits as its factorization.

12225789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452816 (or 452810 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 12225789 is about 3496.5395750656. The cubic root of 12225789 is about 230.3698460429.

The spelling of 12225789 in words is "twelve million, two hundred twenty-five thousand, seven hundred eighty-nine".