12144403 has 2 divisors, whose sum is σ = 12144404. Its totient is φ = 12144402.

The previous prime is 12144389. The next prime is 12144413. The reversal of 12144403 is 30444121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12144403 - 2⁵ = 12144371 is a prime.

It is not a weakly prime, because it can be changed into another prime (12144413) 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 as a sum of consecutive naturals, namely, 6072201 + 6072202.

It is an arithmetic number, because the mean of its divisors is an integer number (6072202).

Almost surely, 2^12144403 is an apocalyptic number.

12144403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12144403 is an equidigital number, since it uses as much as digits as its factorization.

12144403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 12144403 is about 3484.8820640016. The cubic root of 12144403 is about 229.8575236057.

Adding to 12144403 its reverse (30444121), we get a palindrome (42588524).

The spelling of 12144403 in words is "twelve million, one hundred forty-four thousand, four hundred three".