12385091 has 4 divisors (see below), whose sum is σ = 12396384. Its totient is φ = 12373800.

The previous prime is 12385081. The next prime is 12385159. The reversal of 12385091 is 19058321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12385091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12385031) 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, 3800 + ... + 6261.

It is an arithmetic number, because the mean of its divisors is an integer number (3099096).

Almost surely, 2^12385091 is an apocalyptic number.

12385091 is a deficient number, since it is larger than the sum of its proper divisors (11293).

12385091 is a wasteful number, since it uses less digits than its factorization.

12385091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11292.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 12385091 is about 3519.2457998838. The cubic root of 12385091 is about 231.3661042492.

The spelling of 12385091 in words is "twelve million, three hundred eighty-five thousand, ninety-one".