12144425 has 6 divisors (see below), whose sum is σ = 15059118. Its totient is φ = 9715520.

The previous prime is 12144413. The next prime is 12144463. The reversal of 12144425 is 52444121.

It can be written as a sum of positive squares in 3 ways, for example, as 502681 + 11641744 = 709^2 + 3412^2 .

It is not a de Polignac number, because 12144425 - 2⁸ = 12144169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12144425.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 242864 + ... + 242913.

It is an arithmetic number, because the mean of its divisors is an integer number (2509853).

Almost surely, 2^12144425 is an apocalyptic number.

It is an amenable number.

12144425 is a deficient number, since it is larger than the sum of its proper divisors (2914693).

12144425 is an equidigital number, since it uses as much as digits as its factorization.

12144425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485787 (or 485782 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 12144425 is about 3484.8852204915. The cubic root of 12144425 is about 229.8576624038.

Adding to 12144425 its reverse (52444121), we get a palindrome (64588546).

The spelling of 12144425 in words is "twelve million, one hundred forty-four thousand, four hundred twenty-five".