204406141 has 4 divisors (see below), whose sum is σ = 204916284. Its totient is φ = 203896000.

The previous prime is 204406127. The next prime is 204406171. The reversal of 204406141 is 141604402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139925241 + 64480900 = 11829^2 + 8030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204406141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204406171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254470 + ... + 255271.

It is an arithmetic number, because the mean of its divisors is an integer number (51229071).

Almost surely, 2^204406141 is an apocalyptic number.

It is an amenable number.

204406141 is a deficient number, since it is larger than the sum of its proper divisors (510143).

204406141 is an equidigital number, since it uses as much as digits as its factorization.

204406141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510142.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 204406141 is about 14297.0675664627. The cubic root of 204406141 is about 589.0669355875.

The spelling of 204406141 in words is "two hundred four million, four hundred six thousand, one hundred forty-one".