12836513 has 6 divisors (see below), whose sum is σ = 13636326. Its totient is φ = 12081152.

The previous prime is 12836503. The next prime is 12836543. The reversal of 12836513 is 31563821.

It can be written as a sum of positive squares in 3 ways, for example, as 1760929 + 11075584 = 1327^2 + 3328^2 .

It is not a de Polignac number, because 12836513 - 2⁴ = 12836497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12836503) 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 5 ways as a sum of consecutive naturals, for example, 21920 + ... + 22497.

It is an arithmetic number, because the mean of its divisors is an integer number (2272721).

Almost surely, 2^12836513 is an apocalyptic number.

It is an amenable number.

12836513 is a deficient number, since it is larger than the sum of its proper divisors (799813).

12836513 is an equidigital number, since it uses as much as digits as its factorization.

12836513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44451 (or 44434 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 12836513 is about 3582.8079769923. The cubic root of 12836513 is about 234.1436342697.

The spelling of 12836513 in words is "twelve million, eight hundred thirty-six thousand, five hundred thirteen".