204538142 has 4 divisors (see below), whose sum is σ = 306807216. Its totient is φ = 102269070.

The previous prime is 204538141. The next prime is 204538151. The reversal of 204538142 is 241835402.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204538141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51134534 + ... + 51134537.

It is an arithmetic number, because the mean of its divisors is an integer number (76701804).

Almost surely, 2^204538142 is an apocalyptic number.

204538142 is a deficient number, since it is larger than the sum of its proper divisors (102269074).

204538142 is a wasteful number, since it uses less digits than its factorization.

204538142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102269073.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 204538142 is about 14301.6831876531. The cubic root of 204538142 is about 589.1937104684.

The spelling of 204538142 in words is "two hundred four million, five hundred thirty-eight thousand, one hundred forty-two".