12239118 has 12 divisors (see below), whose sum is σ = 26518128. Its totient is φ = 4079700.

The previous prime is 12239093. The next prime is 12239147. The reversal of 12239118 is 81193221.

It is a junction number, because it is equal to n+sod(n) for n = 12239091 and 12239100.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 339958 + ... + 339993.

It is an arithmetic number, because the mean of its divisors is an integer number (2209844).

Almost surely, 2^12239118 is an apocalyptic number.

12239118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12239118 is an abundant number, since it is smaller than the sum of its proper divisors (14279010).

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

12239118 is a wasteful number, since it uses less digits than its factorization.

12239118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679959 (or 679956 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 12239118 is about 3498.4450831762. The cubic root of 12239118 is about 230.4535348328.

The spelling of 12239118 in words is "twelve million, two hundred thirty-nine thousand, one hundred eighteen".