204021141 has 4 divisors (see below), whose sum is σ = 272028192. Its totient is φ = 136014092.

The previous prime is 204021121. The next prime is 204021151. The reversal of 204021141 is 141120402.

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 204021141 - 2²¹ = 201923989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204021141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34003521 + ... + 34003526.

It is an arithmetic number, because the mean of its divisors is an integer number (68007048).

Almost surely, 2^204021141 is an apocalyptic number.

It is an amenable number.

204021141 is a deficient number, since it is larger than the sum of its proper divisors (68007051).

204021141 is an equidigital number, since it uses as much as digits as its factorization.

204021141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68007050.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 204021141 is about 14283.5969209440. The cubic root of 204021141 is about 588.6968662973.

Adding to 204021141 its reverse (141120402), we get a palindrome (345141543).

The spelling of 204021141 in words is "two hundred four million, twenty-one thousand, one hundred forty-one".