12865064 has 8 divisors (see below), whose sum is σ = 24122010. Its totient is φ = 6432528.

The previous prime is 12865063. The next prime is 12865087. The reversal of 12865064 is 46056821.

It can be written as a sum of positive squares in only one way, i.e., 9872164 + 2992900 = 3142^2 + 1730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12865064.

It is not an unprimeable number, because it can be changed into a prime (12865063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804059 + ... + 804074.

Almost surely, 2^12865064 is an apocalyptic number.

It is an amenable number.

12865064 is a deficient number, since it is larger than the sum of its proper divisors (11256946).

12865064 is a wasteful number, since it uses less digits than its factorization.

12865064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608139 (or 1608135 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 12865064 is about 3586.7902085291. The cubic root of 12865064 is about 234.3170999850.

The spelling of 12865064 in words is "twelve million, eight hundred sixty-five thousand, sixty-four".