12144005 has 8 divisors (see below), whose sum is σ = 14628600. Its totient is φ = 9678016.

The previous prime is 12143993. The next prime is 12144007. The reversal of 12144005 is 50044121.

12144005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2114116 + 10029889 = 1454^2 + 3167^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12144005 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3170 + ... + 5859.

It is an arithmetic number, because the mean of its divisors is an integer number (1828575).

Almost surely, 2^12144005 is an apocalyptic number.

It is an amenable number.

12144005 is a deficient number, since it is larger than the sum of its proper divisors (2484595).

12144005 is an equidigital number, since it uses as much as digits as its factorization.

12144005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9303.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12144005 is about 3484.8249597361. The cubic root of 12144005 is about 229.8550125918.

Adding to 12144005 its reverse (50044121), we get a palindrome (62188126).

The spelling of 12144005 in words is "twelve million, one hundred forty-four thousand, five".