12225785 has 16 divisors (see below), whose sum is σ = 17236800. Its totient is φ = 8207040.

The previous prime is 12225779. The next prime is 12225823. The reversal of 12225785 is 58752221.

It is a happy number.

12225785 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12225785 - 2⁴ = 12225769 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7835 + ... + 9264.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^12225785 is an apocalyptic number.

It is an amenable number.

12225785 is a deficient number, since it is larger than the sum of its proper divisors (5011015).

12225785 is a wasteful number, since it uses less digits than its factorization.

12225785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17128.

The product of its digits is 11200, while the sum is 32.

The square root of 12225785 is about 3496.5390030715. The cubic root of 12225785 is about 230.3698209189.

It can be divided in two parts, 1222 and 5785, that added together give a palindrome (7007).

The spelling of 12225785 in words is "twelve million, two hundred twenty-five thousand, seven hundred eighty-five".