204361513 has 4 divisors (see below), whose sum is σ = 204489360. Its totient is φ = 204233668.

The previous prime is 204361477. The next prime is 204361519. The reversal of 204361513 is 315163402.

204361513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204361513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204361519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61495 + ... + 64732.

It is an arithmetic number, because the mean of its divisors is an integer number (51122340).

Almost surely, 2^204361513 is an apocalyptic number.

It is an amenable number.

204361513 is a deficient number, since it is larger than the sum of its proper divisors (127847).

204361513 is a wasteful number, since it uses less digits than its factorization.

204361513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127846.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 204361513 is about 14295.5067416304. The cubic root of 204361513 is about 589.0240621322.

The spelling of 204361513 in words is "two hundred four million, three hundred sixty-one thousand, five hundred thirteen".