12536217 has 12 divisors (see below), whose sum is σ = 18356884. Its totient is φ = 8242560.

The previous prime is 12536197. The next prime is 12536231. The reversal of 12536217 is 71263521.

It is a happy number.

12536217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4447881 + 8088336 = 2109^2 + 2844^2 .

It is not a de Polignac number, because 12536217 - 2¹⁴ = 12519833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12536287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8884 + ... + 10197.

Almost surely, 2^12536217 is an apocalyptic number.

It is an amenable number.

12536217 is a deficient number, since it is larger than the sum of its proper divisors (5820667).

12536217 is a wasteful number, since it uses less digits than its factorization.

12536217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19160 (or 19157 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 12536217 is about 3540.6520585903. The cubic root of 12536217 is about 232.3033647881.

Adding to 12536217 its reverse (71263521), we get a palindrome (83799738).

The spelling of 12536217 in words is "twelve million, five hundred thirty-six thousand, two hundred seventeen".