12318165 has 24 divisors (see below), whose sum is σ = 21441888. Its totient is φ = 6541920.

The previous prime is 12318143. The next prime is 12318193. The reversal of 12318165 is 56181321.

It is not a de Polignac number, because 12318165 - 2¹⁴ = 12301781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14482 + ... + 15308.

It is an arithmetic number, because the mean of its divisors is an integer number (893412).

Almost surely, 2^12318165 is an apocalyptic number.

12318165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12318165 is a deficient number, since it is larger than the sum of its proper divisors (9123723).

12318165 is a wasteful number, since it uses less digits than its factorization.

12318165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1166 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 12318165 is about 3509.7243481504. The cubic root of 12318165 is about 230.9486027214.

Adding to 12318165 its reverse (56181321), we get a palindrome (68499486).

The spelling of 12318165 in words is "twelve million, three hundred eighteen thousand, one hundred sixty-five".