12108018 has 16 divisors (see below), whose sum is σ = 26078976. Its totient is φ = 3725520.

The previous prime is 12108017. The next prime is 12108037. The reversal of 12108018 is 81080121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12107985 and 12108003.

It is not an unprimeable number, because it can be changed into a prime (12108017) 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, 77538 + ... + 77693.

It is an arithmetic number, because the mean of its divisors is an integer number (1629936).

Almost surely, 2^12108018 is an apocalyptic number.

12108018 is an abundant number, since it is smaller than the sum of its proper divisors (13970958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12108018 is a wasteful number, since it uses less digits than its factorization.

12108018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155249.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 12108018 is about 3479.6577417901. The cubic root of 12108018 is about 229.6277406012.

Adding to 12108018 its reverse (81080121), we get a palindrome (93188139).

The spelling of 12108018 in words is "twelve million, one hundred eight thousand, eighteen".