12580865 has 16 divisors (see below), whose sum is σ = 16752960. Its totient is φ = 8992320.

The previous prime is 12580859. The next prime is 12580871. The reversal of 12580865 is 56808521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12580859) and next prime (12580871).

It is not a de Polignac number, because 12580865 - 2¹⁰ = 12579841 is a prime.

It is an unprimeable number.

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, 1307 + ... + 5183.

It is an arithmetic number, because the mean of its divisors is an integer number (1047060).

Almost surely, 2^12580865 is an apocalyptic number.

It is an amenable number.

12580865 is a deficient number, since it is larger than the sum of its proper divisors (4172095).

12580865 is a wasteful number, since it uses less digits than its factorization.

12580865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 12580865 is about 3546.9515079854. The cubic root of 12580865 is about 232.5788224671.

The spelling of 12580865 in words is "twelve million, five hundred eighty thousand, eight hundred sixty-five".