204030115 has 4 divisors (see below), whose sum is σ = 244836144. Its totient is φ = 163224088.

The previous prime is 204030089. The next prime is 204030133. The reversal of 204030115 is 511030402.

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

It is a cyclic number.

It is not a de Polignac number, because 204030115 - 2⁹ = 204029603 is a prime.

It is a Duffinian 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, 20403007 + ... + 20403016.

It is an arithmetic number, because the mean of its divisors is an integer number (61209036).

Almost surely, 2^204030115 is an apocalyptic number.

204030115 is a deficient number, since it is larger than the sum of its proper divisors (40806029).

204030115 is an equidigital number, since it uses as much as digits as its factorization.

204030115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40806028.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 204030115 is about 14283.9110540496. The cubic root of 204030115 is about 588.7054975731.

Adding to 204030115 its reverse (511030402), we get a palindrome (715060517).

The spelling of 204030115 in words is "two hundred four million, thirty thousand, one hundred fifteen".