203140 has 24 divisors (see below), whose sum is σ = 487872. Its totient is φ = 69600.

The previous prime is 203117. The next prime is 203141. The reversal of 203140 is 41302.

It is a Harshad number since it is a multiple of its sum of digits (10).

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 7 ways as a sum of consecutive naturals, for example, 586 + ... + 865.

It is an arithmetic number, because the mean of its divisors is an integer number (20328).

2²⁰³¹⁴⁰ is an apocalyptic number.

203140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203140 is an abundant number, since it is smaller than the sum of its proper divisors (284732).

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

203140 is a wasteful number, since it uses less digits than its factorization.

203140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 203140 is about 450.7105501317. The cubic root of 203140 is about 58.7848141326.

Adding to 203140 its reverse (41302), we get a palindrome (244442).

It can be divided in two parts, 203 and 140, that added together give a palindrome (343).

The spelling of 203140 in words is "two hundred three thousand, one hundred forty", and thus it is an iban number.