12115424 has 24 divisors (see below), whose sum is σ = 25256448. Its totient is φ = 5701120.

The previous prime is 12115421. The next prime is 12115463. The reversal of 12115424 is 42451121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12115396 and 12115405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10592 + ... + 11679.

It is an arithmetic number, because the mean of its divisors is an integer number (1052352).

Almost surely, 2^12115424 is an apocalyptic number.

It is an amenable number.

12115424 is an abundant number, since it is smaller than the sum of its proper divisors (13141024).

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

12115424 is a wasteful number, since it uses less digits than its factorization.

12115424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22298 (or 22290 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 12115424 is about 3480.7217642322. The cubic root of 12115424 is about 229.6745491549.

Adding to 12115424 its reverse (42451121), we get a palindrome (54566545).

The spelling of 12115424 in words is "twelve million, one hundred fifteen thousand, four hundred twenty-four".