203230140 has 24 divisors (see below), whose sum is σ = 569044560. Its totient is φ = 54194688.

The previous prime is 203230133. The next prime is 203230147. The reversal of 203230140 is 41032302.

203230140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (203230133) and next prime (203230147).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203230147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1693525 + ... + 1693644.

It is an arithmetic number, because the mean of its divisors is an integer number (23710190).

Almost surely, 2^203230140 is an apocalyptic number.

203230140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203230140 is an abundant number, since it is smaller than the sum of its proper divisors (365814420).

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

203230140 is a wasteful number, since it uses less digits than its factorization.

203230140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387181 (or 3387179 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 203230140 is about 14255.8808917583. The cubic root of 203230140 is about 587.9350777504.

Adding to 203230140 its reverse (41032302), we get a palindrome (244262442).

The spelling of 203230140 in words is "two hundred three million, two hundred thirty thousand, one hundred forty".