203042144 has 12 divisors (see below), whose sum is σ = 399739284. Its totient is φ = 101521056.

The previous prime is 203042141. The next prime is 203042159. The reversal of 203042144 is 441240302.

It is a super-2 number, since 2×203042144² = 82452224480233472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203042141) by changing a digit.

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 as a sum of consecutive naturals, namely, 3172502 + ... + 3172565.

It is an arithmetic number, because the mean of its divisors is an integer number (33311607).

Almost surely, 2^203042144 is an apocalyptic number.

It is an amenable number.

203042144 is a deficient number, since it is larger than the sum of its proper divisors (196697140).

203042144 is an equidigital number, since it uses as much as digits as its factorization.

203042144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6345077 (or 6345069 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 203042144 is about 14249.2857364852. The cubic root of 203042144 is about 587.7537340091.

Adding to 203042144 its reverse (441240302), we get a palindrome (644282446).

The spelling of 203042144 in words is "two hundred three million, forty-two thousand, one hundred forty-four".