203144 has 16 divisors (see below), whose sum is σ = 387600. Its totient is φ = 99792.

The previous prime is 203141. The next prime is 203173. The reversal of 203144 is 441302.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 203144.

It is not an unprimeable number, because it can be changed into a prime (203141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (24225).

2²⁰³¹⁴⁴ is an apocalyptic number.

It is an amenable number.

203144 is a deficient number, since it is larger than the sum of its proper divisors (184456).

203144 is a wasteful number, since it uses less digits than its factorization.

203144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 203144 is about 450.7149875476. The cubic root of 203144 is about 58.7851999711.

Adding to 203144 its reverse (441302), we get a palindrome (644446).

The spelling of 203144 in words is "two hundred three thousand, one hundred forty-four", and thus it is an iban number.