12860215 has 4 divisors (see below), whose sum is σ = 15432264. Its totient is φ = 10288168.

The previous prime is 12860179. The next prime is 12860219. The reversal of 12860215 is 51206821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51206821 = 223 ⋅229627.

It is a cyclic number.

It is not a de Polignac number, because 12860215 - 2⁷ = 12860087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12860215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12860219) 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 3 ways as a sum of consecutive naturals, for example, 1286017 + ... + 1286026.

It is an arithmetic number, because the mean of its divisors is an integer number (3858066).

Almost surely, 2^12860215 is an apocalyptic number.

12860215 is a deficient number, since it is larger than the sum of its proper divisors (2572049).

12860215 is an equidigital number, since it uses as much as digits as its factorization.

12860215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572048.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12860215 is about 3586.1141922700. The cubic root of 12860215 is about 234.2876572918.

The spelling of 12860215 in words is "twelve million, eight hundred sixty thousand, two hundred fifteen".