12144945 has 16 divisors (see below), whose sum is σ = 19507392. Its totient is φ = 6452160.

The previous prime is 12144931. The next prime is 12144959. The reversal of 12144945 is 54944121.

12144945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12144931) and next prime (12144959).

It is not a de Polignac number, because 12144945 - 2⁴ = 12144929 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2815 + ... + 5675.

It is an arithmetic number, because the mean of its divisors is an integer number (1219212).

Almost surely, 2^12144945 is an apocalyptic number.

12144945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12144945 is a deficient number, since it is larger than the sum of its proper divisors (7362447).

12144945 is a wasteful number, since it uses less digits than its factorization.

12144945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152.

The product of its digits is 5760, while the sum is 30.

The square root of 12144945 is about 3484.9598276020. The cubic root of 12144945 is about 229.8609430389.

It can be divided in two parts, 121 and 44945, that multiplied together give a palindrome (5438345).

The spelling of 12144945 in words is "twelve million, one hundred forty-four thousand, nine hundred forty-five".