12135617 has 8 divisors (see below), whose sum is σ = 13137600. Its totient is φ = 11143440.

The previous prime is 12135611. The next prime is 12135677. The reversal of 12135617 is 71653121.

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 12135617 - 2¹⁶ = 12070081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12135611) 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, 242 + ... + 4932.

It is an arithmetic number, because the mean of its divisors is an integer number (1642200).

Almost surely, 2^12135617 is an apocalyptic number.

It is an amenable number.

12135617 is a deficient number, since it is larger than the sum of its proper divisors (1001983).

12135617 is a wasteful number, since it uses less digits than its factorization.

12135617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4903.

The product of its digits is 1260, while the sum is 26.

The square root of 12135617 is about 3483.6212480693. The cubic root of 12135617 is about 229.8020792605.

Adding to 12135617 its reverse (71653121), we get a palindrome (83788738).

The spelling of 12135617 in words is "twelve million, one hundred thirty-five thousand, six hundred seventeen".