12193109 has 4 divisors (see below), whose sum is σ = 12204204. Its totient is φ = 12182016.

The previous prime is 12193081. The next prime is 12193133. The reversal of 12193109 is 90139121.

12193109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90139121 = 7583 ⋅11887.

It can be written as a sum of positive squares in 2 ways, for example, as 6916900 + 5276209 = 2630^2 + 2297^2 .

It is a cyclic number.

It is not a de Polignac number, because 12193109 - 2⁸ = 12192853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12193169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3692 + ... + 6165.

It is an arithmetic number, because the mean of its divisors is an integer number (3051051).

Almost surely, 2^12193109 is an apocalyptic number.

It is an amenable number.

12193109 is a deficient number, since it is larger than the sum of its proper divisors (11095).

12193109 is an equidigital number, since it uses as much as digits as its factorization.

12193109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11094.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 12193109 is about 3491.8632562000. The cubic root of 12193109 is about 230.1644004196.

The spelling of 12193109 in words is "twelve million, one hundred ninety-three thousand, one hundred nine".