204475641 has 4 divisors (see below), whose sum is σ = 272634192. Its totient is φ = 136317092.

The previous prime is 204475639. The next prime is 204475679. The reversal of 204475641 is 146574402.

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 not a de Polignac number, because 204475641 - 2¹ = 204475639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204470641) 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, 34079271 + ... + 34079276.

It is an arithmetic number, because the mean of its divisors is an integer number (68158548).

Almost surely, 2^204475641 is an apocalyptic number.

It is an amenable number.

204475641 is a deficient number, since it is larger than the sum of its proper divisors (68158551).

204475641 is an equidigital number, since it uses as much as digits as its factorization.

204475641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68158550.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 204475641 is about 14299.4979282491. The cubic root of 204475641 is about 589.1336907784.

The spelling of 204475641 in words is "two hundred four million, four hundred seventy-five thousand, six hundred forty-one".