203240142 has 36 divisors (see below), whose sum is σ = 512250336. Its totient is φ = 58068360.

The previous prime is 203240087. The next prime is 203240153. The reversal of 203240142 is 241042302.

203240142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 114334 + ... + 116097.

It is an arithmetic number, because the mean of its divisors is an integer number (14229176).

Almost surely, 2^203240142 is an apocalyptic number.

203240142 is an abundant number, since it is smaller than the sum of its proper divisors (309010194).

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

203240142 is a wasteful number, since it uses less digits than its factorization.

203240142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230453 (or 230443 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 203240142 is about 14256.2316900365. The cubic root of 203240142 is about 587.9447226948.

Adding to 203240142 its reverse (241042302), we get a palindrome (444282444).

The spelling of 203240142 in words is "two hundred three million, two hundred forty thousand, one hundred forty-two".