12536413 has 4 divisors (see below), whose sum is σ = 12620700. Its totient is φ = 12452128.

The previous prime is 12536411. The next prime is 12536467. The reversal of 12536413 is 31463521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31463521 = 29 ⋅1084949.

It can be written as a sum of positive squares in 2 ways, for example, as 5890329 + 6646084 = 2427^2 + 2578^2 .

It is a cyclic number.

It is not a de Polignac number, because 12536413 - 2¹ = 12536411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12536411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41920 + ... + 42217.

It is an arithmetic number, because the mean of its divisors is an integer number (3155175).

Almost surely, 2^12536413 is an apocalyptic number.

It is an amenable number.

12536413 is a deficient number, since it is larger than the sum of its proper divisors (84287).

12536413 is an equidigital number, since it uses as much as digits as its factorization.

12536413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84286.

The product of its digits is 2160, while the sum is 25.

The square root of 12536413 is about 3540.6797369997. The cubic root of 12536413 is about 232.3045754463.

Adding to 12536413 its reverse (31463521), we get a palindrome (43999934).

The spelling of 12536413 in words is "twelve million, five hundred thirty-six thousand, four hundred thirteen".