204243315 has 8 divisors (see below), whose sum is σ = 326789328. Its totient is φ = 108929760.

The previous prime is 204243313. The next prime is 204243323. The reversal of 204243315 is 513342402.

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

It is not a de Polignac number, because 204243315 - 2¹ = 204243313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204243313) 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, 6808096 + ... + 6808125.

It is an arithmetic number, because the mean of its divisors is an integer number (40848666).

Almost surely, 2^204243315 is an apocalyptic number.

204243315 is a deficient number, since it is larger than the sum of its proper divisors (122546013).

204243315 is a wasteful number, since it uses less digits than its factorization.

204243315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13616229.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 204243315 is about 14291.3720474977. The cubic root of 204243315 is about 588.9104809073.

Adding to 204243315 its reverse (513342402), we get a palindrome (717585717).

The spelling of 204243315 in words is "two hundred four million, two hundred forty-three thousand, three hundred fifteen".