12020144 has 10 divisors (see below), whose sum is σ = 23289060. Its totient is φ = 6010064.

The previous prime is 12020137. The next prime is 12020161. The reversal of 12020144 is 44102021.

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 as a sum of consecutive naturals, namely, 375614 + ... + 375645.

It is an arithmetic number, because the mean of its divisors is an integer number (2328906).

Almost surely, 2^12020144 is an apocalyptic number.

It is an amenable number.

12020144 is a deficient number, since it is larger than the sum of its proper divisors (11268916).

12020144 is an equidigital number, since it uses as much as digits as its factorization.

12020144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751267 (or 751261 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12020144 is about 3467.0079319205. The cubic root of 12020144 is about 229.0708831377.

Adding to 12020144 its reverse (44102021), we get a palindrome (56122165).

The spelling of 12020144 in words is "twelve million, twenty thousand, one hundred forty-four".