204520142 has 8 divisors (see below), whose sum is σ = 322926600. Its totient is φ = 96877944.

The previous prime is 204520111. The next prime is 204520207. The reversal of 204520142 is 241025402.

It is a happy number.

204520142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2691017 + ... + 2691092.

It is an arithmetic number, because the mean of its divisors is an integer number (40365825).

Almost surely, 2^204520142 is an apocalyptic number.

204520142 is a deficient number, since it is larger than the sum of its proper divisors (118406458).

204520142 is a wasteful number, since it uses less digits than its factorization.

204520142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382130.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 204520142 is about 14301.0538772497. The cubic root of 204520142 is about 589.1764263280.

Adding to 204520142 its reverse (241025402), we get a palindrome (445545544).

The spelling of 204520142 in words is "two hundred four million, five hundred twenty thousand, one hundred forty-two".