204120315 has 48 divisors (see below), whose sum is σ = 407160000. Its totient is φ = 92664576.

The previous prime is 204120313. The next prime is 204120347. The reversal of 204120315 is 513021402.

204120315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204120315 - 2¹ = 204120313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204120313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44761 + ... + 49109.

It is an arithmetic number, because the mean of its divisors is an integer number (8482500).

Almost surely, 2^204120315 is an apocalyptic number.

204120315 is a deficient number, since it is larger than the sum of its proper divisors (203039685).

204120315 is a wasteful number, since it uses less digits than its factorization.

204120315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516 (or 4513 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 204120315 is about 14287.0681037083. The cubic root of 204120315 is about 588.7922387103.

Adding to 204120315 its reverse (513021402), we get a palindrome (717141717).

The spelling of 204120315 in words is "two hundred four million, one hundred twenty thousand, three hundred fifteen".