12115546 has 8 divisors (see below), whose sum is σ = 18316800. Its totient is φ = 6009948.

The previous prime is 12115531. The next prime is 12115547. The reversal of 12115546 is 64551121.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12115546.

It is not an unprimeable number, because it can be changed into a prime (12115547) 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, 23596 + ... + 24103.

It is an arithmetic number, because the mean of its divisors is an integer number (2289600).

Almost surely, 2^12115546 is an apocalyptic number.

12115546 is a deficient number, since it is larger than the sum of its proper divisors (6201254).

12115546 is a wasteful number, since it uses less digits than its factorization.

12115546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47828.

The product of its digits is 1200, while the sum is 25.

The square root of 12115546 is about 3480.7392892890. The cubic root of 12115546 is about 229.6753200785.

Adding to 12115546 its reverse (64551121), we get a palindrome (76666667).

The spelling of 12115546 in words is "twelve million, one hundred fifteen thousand, five hundred forty-six".