12118086 has 80 divisors (see below), whose sum is σ = 29736960. Its totient is φ = 3674160.

The previous prime is 12118063. The next prime is 12118087. The reversal of 12118086 is 68081121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12118087) 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 39 ways as a sum of consecutive naturals, for example, 95355 + ... + 95481.

It is an arithmetic number, because the mean of its divisors is an integer number (371712).

Almost surely, 2^12118086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12118086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14868480).

12118086 is an abundant number, since it is smaller than the sum of its proper divisors (17618874).

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

12118086 is a wasteful number, since it uses less digits than its factorization.

12118086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 12118086 is about 3481.1041351847. The cubic root of 12118086 is about 229.6913692809.

The spelling of 12118086 in words is "twelve million, one hundred eighteen thousand, eighty-six".