203200144 has 40 divisors (see below), whose sum is σ = 450933440. Its totient is φ = 86894208.

The previous prime is 203200139. The next prime is 203200157. The reversal of 203200144 is 441002302.

It is a Harshad number since it is a multiple of its sum of digits (16).

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 7 ways as a sum of consecutive naturals, for example, 56842 + ... + 60310.

It is an arithmetic number, because the mean of its divisors is an integer number (11273336).

Almost surely, 2^203200144 is an apocalyptic number.

It is an amenable number.

203200144 is an abundant number, since it is smaller than the sum of its proper divisors (247733296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203200144 is a wasteful number, since it uses less digits than its factorization.

203200144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007 (or 4001 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 203200144 is about 14254.8287958853. The cubic root of 203200144 is about 587.9061506626.

Adding to 203200144 its reverse (441002302), we get a palindrome (644202446).

The spelling of 203200144 in words is "two hundred three million, two hundred thousand, one hundred forty-four".