12109026 has 8 divisors (see below), whose sum is σ = 24218064. Its totient is φ = 4036340.

The previous prime is 12109007. The next prime is 12109039. The reversal of 12109026 is 62090121.

It is a sphenic number, since it is the product of 3 distinct primes.

12109026 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 12108993 and 12109011.

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 3 ways as a sum of consecutive naturals, for example, 1009080 + ... + 1009091.

It is an arithmetic number, because the mean of its divisors is an integer number (3027258).

Almost surely, 2^12109026 is an apocalyptic number.

12109026 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12109026 is a wasteful number, since it uses less digits than its factorization.

12109026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018176.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 12109026 is about 3479.8025806071. The cubic root of 12109026 is about 229.6341126416.

Adding to 12109026 its reverse (62090121), we get a palindrome (74199147).

The spelling of 12109026 in words is "twelve million, one hundred nine thousand, twenty-six".