204140041 has 4 divisors (see below), whose sum is σ = 233302912. Its totient is φ = 174977172.

The previous prime is 204140023. The next prime is 204140081. The reversal of 204140041 is 140041402.

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, and also an emirpimes, since its reverse is a distinct semiprime: 140041402 = 2 ⋅70020701.

It is a cyclic number.

It is not a de Polignac number, because 204140041 - 2⁷ = 204139913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204139997 and 204140024.

It is not an unprimeable number, because it can be changed into a prime (204140011) 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, 14581425 + ... + 14581438.

It is an arithmetic number, because the mean of its divisors is an integer number (58325728).

Almost surely, 2^204140041 is an apocalyptic number.

It is an amenable number.

204140041 is a deficient number, since it is larger than the sum of its proper divisors (29162871).

204140041 is an equidigital number, since it uses as much as digits as its factorization.

204140041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29162870.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 204140041 is about 14287.7584316085. The cubic root of 204140041 is about 588.8112048800.

Adding to 204140041 its reverse (140041402), we get a palindrome (344181443).

The spelling of 204140041 in words is "two hundred four million, one hundred forty thousand, forty-one".