12536601 has 24 divisors (see below), whose sum is σ = 21214944. Its totient is φ = 6511680.

The previous prime is 12536597. The next prime is 12536621. The reversal of 12536601 is 10663521.

It is not a de Polignac number, because 12536601 - 2² = 12536597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12536621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2260 + ... + 5493.

It is an arithmetic number, because the mean of its divisors is an integer number (883956).

Almost surely, 2^12536601 is an apocalyptic number.

12536601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12536601 is a deficient number, since it is larger than the sum of its proper divisors (8678343).

12536601 is a wasteful number, since it uses less digits than its factorization.

12536601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781 (or 7774 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 12536601 is about 3540.7062854747. The cubic root of 12536601 is about 232.3057366781.

Subtracting from 12536601 its reverse (10663521), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 12536601 in words is "twelve million, five hundred thirty-six thousand, six hundred one".