12836506 has 4 divisors (see below), whose sum is σ = 19254762. Its totient is φ = 6418252.

The previous prime is 12836503. The next prime is 12836543. The reversal of 12836506 is 60563821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60563821 = 379 ⋅159799.

It can be written as a sum of positive squares in only one way, i.e., 12425625 + 410881 = 3525^2 + 641^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12836503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3209125 + ... + 3209128.

Almost surely, 2^12836506 is an apocalyptic number.

12836506 is a deficient number, since it is larger than the sum of its proper divisors (6418256).

12836506 is an equidigital number, since it uses as much as digits as its factorization.

12836506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6418255.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 12836506 is about 3582.8070001048. The cubic root of 12836506 is about 234.1435917087.

The spelling of 12836506 in words is "twelve million, eight hundred thirty-six thousand, five hundred six".