204542115 has 8 divisors (see below), whose sum is σ = 327267408. Its totient is φ = 109089120.

The previous prime is 204542029. The next prime is 204542119. The reversal of 204542115 is 511245402.

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

It is not a de Polignac number, because 204542115 - 2¹⁴ = 204525731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204542119) 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, 6818056 + ... + 6818085.

It is an arithmetic number, because the mean of its divisors is an integer number (40908426).

Almost surely, 2^204542115 is an apocalyptic number.

204542115 is a deficient number, since it is larger than the sum of its proper divisors (122725293).

204542115 is a wasteful number, since it uses less digits than its factorization.

204542115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13636149.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 204542115 is about 14301.8220867133. The cubic root of 204542115 is about 589.1975253257.

Adding to 204542115 its reverse (511245402), we get a palindrome (715787517).

The spelling of 204542115 in words is "two hundred four million, five hundred forty-two thousand, one hundred fifteen".