12682509 has 16 divisors (see below), whose sum is σ = 19592832. Its totient is φ = 7147008.

The previous prime is 12682507. The next prime is 12682511. The reversal of 12682509 is 90528621.

12682509 is digitally balanced in base 3, 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 (12682507) and next prime (12682511).

It is not a de Polignac number, because 12682509 - 2¹ = 12682507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12682509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12682507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2604 + ... + 5669.

It is an arithmetic number, because the mean of its divisors is an integer number (1224552).

Almost surely, 2^12682509 is an apocalyptic number.

It is an amenable number.

12682509 is a deficient number, since it is larger than the sum of its proper divisors (6910323).

12682509 is an equidigital number, since it uses as much as digits as its factorization.

12682509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8356.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 12682509 is about 3561.2510442259. The cubic root of 12682509 is about 233.2034976090.

The spelling of 12682509 in words is "twelve million, six hundred eighty-two thousand, five hundred nine".