12859515 has 12 divisors (see below), whose sum is σ = 22289904. Its totient is φ = 6858384.

The previous prime is 12859487. The next prime is 12859543. The reversal of 12859515 is 51595821.

It is a happy number.

12859515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12859487) and next prime (12859543).

It is not a de Polignac number, because 12859515 - 2⁹ = 12859003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12859515.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142839 + ... + 142928.

It is an arithmetic number, because the mean of its divisors is an integer number (1857492).

Almost surely, 2^12859515 is an apocalyptic number.

12859515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12859515 is a deficient number, since it is larger than the sum of its proper divisors (9430389).

12859515 is a wasteful number, since it uses less digits than its factorization.

12859515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285778 (or 285775 counting only the distinct ones).

The product of its digits is 18000, while the sum is 36.

The square root of 12859515 is about 3586.0165922650. The cubic root of 12859515 is about 234.2834063432.

It can be divided in two parts, 1285951 and 5, that added together give a square (1285956 = 1134²).

The spelling of 12859515 in words is "twelve million, eight hundred fifty-nine thousand, five hundred fifteen".