12144406 has 8 divisors (see below), whose sum is σ = 18421560. Its totient is φ = 6003888.

The previous prime is 12144403. The next prime is 12144413. The reversal of 12144406 is 60444121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144403) 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, 33936 + ... + 34291.

It is an arithmetic number, because the mean of its divisors is an integer number (2302695).

Almost surely, 2^12144406 is an apocalyptic number.

12144406 is a deficient number, since it is larger than the sum of its proper divisors (6277154).

12144406 is an equidigital number, since it uses as much as digits as its factorization.

12144406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68318.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 12144406 is about 3484.8824944322. The cubic root of 12144406 is about 229.8575425327.

Adding to 12144406 its reverse (60444121), we get a palindrome (72588527).

The spelling of 12144406 in words is "twelve million, one hundred forty-four thousand, four hundred six".