12318055 has 8 divisors (see below), whose sum is σ = 14811552. Its totient is φ = 9834528.

The previous prime is 12318043. The next prime is 12318071. The reversal of 12318055 is 55081321.

It is a happy number.

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 12318055 - 2⁷ = 12317927 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 574 + ... + 4996.

It is an arithmetic number, because the mean of its divisors is an integer number (1851444).

Almost surely, 2^12318055 is an apocalyptic number.

12318055 is a deficient number, since it is larger than the sum of its proper divisors (2493497).

12318055 is an equidigital number, since it uses as much as digits as its factorization.

12318055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4985.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 12318055 is about 3509.7086773691. The cubic root of 12318055 is about 230.9479152699.

Adding to 12318055 its reverse (55081321), we get a palindrome (67399376).

The spelling of 12318055 in words is "twelve million, three hundred eighteen thousand, fifty-five".