12536605 has 8 divisors (see below), whose sum is σ = 15111000. Its totient is φ = 9984576.

The previous prime is 12536597. The next prime is 12536621. The reversal of 12536605 is 50663521.

It can be written as a sum of positive squares in 4 ways, for example, as 1125721 + 11410884 = 1061^2 + 3378^2 .

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 12536605 - 2³ = 12536597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4330 + ... + 6619.

It is an arithmetic number, because the mean of its divisors is an integer number (1888875).

Almost surely, 2^12536605 is an apocalyptic number.

It is an amenable number.

12536605 is a deficient number, since it is larger than the sum of its proper divisors (2574395).

12536605 is a wasteful number, since it uses less digits than its factorization.

12536605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11183.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 12536605 is about 3540.7068503337. The cubic root of 12536605 is about 232.3057613850.

The spelling of 12536605 in words is "twelve million, five hundred thirty-six thousand, six hundred five".