12636533 has 8 divisors (see below), whose sum is σ = 15552768. Its totient is φ = 9998064.

The previous prime is 12636529. The next prime is 12636551. The reversal of 12636533 is 33563621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12636533 - 2² = 12636529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12636496 and 12636505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12636523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69341 + ... + 69522.

It is an arithmetic number, because the mean of its divisors is an integer number (1944096).

Almost surely, 2^12636533 is an apocalyptic number.

12636533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12636533 is a deficient number, since it is larger than the sum of its proper divisors (2916235).

12636533 is a wasteful number, since it uses less digits than its factorization.

12636533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138883.

The product of its digits is 9720, while the sum is 29.

The square root of 12636533 is about 3554.7901485179. The cubic root of 12636533 is about 232.9213571650.

The spelling of 12636533 in words is "twelve million, six hundred thirty-six thousand, five hundred thirty-three".