12365985 has 8 divisors (see below), whose sum is σ = 19785600. Its totient is φ = 6595184.

The previous prime is 12365959. The next prime is 12366023. The reversal of 12365985 is 58956321.

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 12365985 - 2⁸ = 12365729 is a prime.

It is an unprimeable number.

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, 412185 + ... + 412214.

It is an arithmetic number, because the mean of its divisors is an integer number (2473200).

Almost surely, 2^12365985 is an apocalyptic number.

12365985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12365985 is a deficient number, since it is larger than the sum of its proper divisors (7419615).

12365985 is an equidigital number, since it uses as much as digits as its factorization.

12365985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824407.

The product of its digits is 64800, while the sum is 39.

The square root of 12365985 is about 3516.5302501187. The cubic root of 12365985 is about 231.2470698436.

The spelling of 12365985 in words is "twelve million, three hundred sixty-five thousand, nine hundred eighty-five".