12245905 has 16 divisors (see below), whose sum is σ = 16853760. Its totient is φ = 8367552.

The previous prime is 12245879. The next prime is 12245929. The reversal of 12245905 is 50954221.

It is a cyclic number.

It is not a de Polignac number, because 12245905 - 2⁵ = 12245873 is a prime.

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, 14967 + ... + 15763.

It is an arithmetic number, because the mean of its divisors is an integer number (1053360).

Almost surely, 2^12245905 is an apocalyptic number.

It is an amenable number.

12245905 is a deficient number, since it is larger than the sum of its proper divisors (4607855).

12245905 is an equidigital number, since it uses as much as digits as its factorization.

12245905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 12245905 is about 3499.4149511025. The cubic root of 12245905 is about 230.4961250237.

The spelling of 12245905 in words is "twelve million, two hundred forty-five thousand, nine hundred five".