12409136 has 20 divisors (see below), whose sum is σ = 24133872. Its totient is φ = 6181056.

The previous prime is 12409127. The next prime is 12409139. The reversal of 12409136 is 63190421.

12409136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12409139) 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, 3365 + ... + 6011.

Almost surely, 2^12409136 is an apocalyptic number.

12409136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12409136 is a deficient number, since it is larger than the sum of its proper divisors (11724736).

12409136 is a wasteful number, since it uses less digits than its factorization.

12409136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948 (or 2942 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 12409136 is about 3522.6603583088. The cubic root of 12409136 is about 231.5157358140.

Adding to 12409136 its reverse (63190421), we get a palindrome (75599557).

The spelling of 12409136 in words is "twelve million, four hundred nine thousand, one hundred thirty-six".