204143042 has 4 divisors (see below), whose sum is σ = 306214566. Its totient is φ = 102071520.

The previous prime is 204143041. The next prime is 204143047. The reversal of 204143042 is 240341402.

204143042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 180123241 + 24019801 = 13421^2 + 4901^2 .

It is not an unprimeable number, because it can be changed into a prime (204143041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51035759 + ... + 51035762.

Almost surely, 2^204143042 is an apocalyptic number.

204143042 is a deficient number, since it is larger than the sum of its proper divisors (102071524).

204143042 is a wasteful number, since it uses less digits than its factorization.

204143042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102071523.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 204143042 is about 14287.8634511952. The cubic root of 204143042 is about 588.8140901767.

Adding to 204143042 its reverse (240341402), we get a palindrome (444484444).

The spelling of 204143042 in words is "two hundred four million, one hundred forty-three thousand, forty-two".