12335681 has 4 divisors (see below), whose sum is σ = 12356292. Its totient is φ = 12315072.

The previous prime is 12335671. The next prime is 12335699. The reversal of 12335681 is 18653321.

12335681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18653321 = 1699 ⋅10979.

It can be written as a sum of positive squares in 2 ways, for example, as 3094081 + 9241600 = 1759^2 + 3040^2 .

It is a cyclic number.

It is not a de Polignac number, because 12335681 - 2¹⁴ = 12319297 is a prime.

It is a super-2 number, since 2×12335681² = 304338051467522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12335621) 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 3 ways as a sum of consecutive naturals, for example, 9380 + ... + 10613.

It is an arithmetic number, because the mean of its divisors is an integer number (3089073).

Almost surely, 2^12335681 is an apocalyptic number.

It is an amenable number.

12335681 is a deficient number, since it is larger than the sum of its proper divisors (20611).

12335681 is an equidigital number, since it uses as much as digits as its factorization.

12335681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20610.

The product of its digits is 4320, while the sum is 29.

The square root of 12335681 is about 3512.2188143679. The cubic root of 12335681 is about 231.0580178228.

The spelling of 12335681 in words is "twelve million, three hundred thirty-five thousand, six hundred eighty-one".