203043140 has 24 divisors (see below), whose sum is σ = 427858200. Its totient is φ = 80937728.

The previous prime is 203043097. The next prime is 203043151. The reversal of 203043140 is 41340302.

It can be written as a sum of positive squares in 4 ways, for example, as 34199104 + 168844036 = 5848^2 + 12994^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11465 + ... + 23184.

It is an arithmetic number, because the mean of its divisors is an integer number (17827425).

Almost surely, 2^203043140 is an apocalyptic number.

203043140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203043140 is an abundant number, since it is smaller than the sum of its proper divisors (224815060).

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

203043140 is a wasteful number, since it uses less digits than its factorization.

203043140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34951 (or 34949 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 203043140 is about 14249.3206855625. The cubic root of 203043140 is about 587.7546950604.

Adding to 203043140 its reverse (41340302), we get a palindrome (244383442).

The spelling of 203043140 in words is "two hundred three million, forty-three thousand, one hundred forty".