204243001 has 8 divisors (see below), whose sum is σ = 209200640. Its totient is φ = 199341648.

The previous prime is 204242999. The next prime is 204243007. The reversal of 204243001 is 100342402.

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

It is a cyclic number.

It is not a de Polignac number, because 204243001 - 2¹ = 204242999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204243007) 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, 6681 + ... + 21286.

It is an arithmetic number, because the mean of its divisors is an integer number (26150080).

Almost surely, 2^204243001 is an apocalyptic number.

It is an amenable number.

204243001 is a deficient number, since it is larger than the sum of its proper divisors (4957639).

204243001 is a wasteful number, since it uses less digits than its factorization.

204243001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28143.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 204243001 is about 14291.3610618443. The cubic root of 204243001 is about 588.9101791137.

Adding to 204243001 its reverse (100342402), we get a palindrome (304585403).

The spelling of 204243001 in words is "two hundred four million, two hundred forty-three thousand, one".