12865365 has 32 divisors (see below), whose sum is σ = 23055360. Its totient is φ = 6806592.

The previous prime is 12865361. The next prime is 12865367. The reversal of 12865365 is 56356821.

12865365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12865365 - 2² = 12865361 is a prime.

It is a super-3 number, since 3×12865365³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12865361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20892 + ... + 21498.

It is an arithmetic number, because the mean of its divisors is an integer number (720480).

Almost surely, 2^12865365 is an apocalyptic number.

12865365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12865365 is a deficient number, since it is larger than the sum of its proper divisors (10189995).

12865365 is a wasteful number, since it uses less digits than its factorization.

12865365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 772 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 12865365 is about 3586.8321678049. The cubic root of 12865365 is about 234.3189273861.

The spelling of 12865365 in words is "twelve million, eight hundred sixty-five thousand, three hundred sixty-five".