12205895 has 16 divisors (see below), whose sum is σ = 15980160. Its totient is φ = 8895744.

The previous prime is 12205891. The next prime is 12205901. The reversal of 12205895 is 59850221.

12205895 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 12205895 - 2² = 12205891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3947 + ... + 6323.

It is an arithmetic number, because the mean of its divisors is an integer number (998760).

Almost surely, 2^12205895 is an apocalyptic number.

12205895 is a deficient number, since it is larger than the sum of its proper divisors (3774265).

12205895 is a wasteful number, since it uses less digits than its factorization.

12205895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 12205895 is about 3493.6936041960. The cubic root of 12205895 is about 230.2448243695.

The spelling of 12205895 in words is "twelve million, two hundred five thousand, eight hundred ninety-five".