204841019 has 2 divisors, whose sum is σ = 204841020. Its totient is φ = 204841018.

The previous prime is 204841009. The next prime is 204841051. The reversal of 204841019 is 910148402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204841019 - 2⁴ = 204841003 is a prime.

It is a super-2 number, since 2×204841019² = 83919686129916722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204840982 and 204841000.

It is not a weakly prime, because it can be changed into another prime (204841009) 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 as a sum of consecutive naturals, namely, 102420509 + 102420510.

It is an arithmetic number, because the mean of its divisors is an integer number (102420510).

Almost surely, 2^204841019 is an apocalyptic number.

204841019 is a deficient number, since it is larger than the sum of its proper divisors (1).

204841019 is an equidigital number, since it uses as much as digits as its factorization.

204841019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 204841019 is about 14312.2681291261. The cubic root of 204841019 is about 589.4843900950.

The spelling of 204841019 in words is "two hundred four million, eight hundred forty-one thousand, nineteen".