12865245 has 16 divisors (see below), whose sum is σ = 20934720. Its totient is φ = 6744704.

The previous prime is 12865199. The next prime is 12865247. The reversal of 12865245 is 54256821.

It is a cyclic number.

It is not a de Polignac number, because 12865245 - 2⁸ = 12864989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12865247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6384 + ... + 8153.

It is an arithmetic number, because the mean of its divisors is an integer number (1308420).

Almost surely, 2^12865245 is an apocalyptic number.

12865245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12865245 is a deficient number, since it is larger than the sum of its proper divisors (8069475).

12865245 is a wasteful number, since it uses less digits than its factorization.

12865245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14604.

The product of its digits is 19200, while the sum is 33.

The square root of 12865245 is about 3586.8154399132. The cubic root of 12865245 is about 234.3181988575.

The spelling of 12865245 in words is "twelve million, eight hundred sixty-five thousand, two hundred forty-five".