204051611 has 2 divisors, whose sum is σ = 204051612. Its totient is φ = 204051610.

The previous prime is 204051593. The next prime is 204051623. The reversal of 204051611 is 116150402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204051611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204051311) 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, 102025805 + 102025806.

It is an arithmetic number, because the mean of its divisors is an integer number (102025806).

Almost surely, 2^204051611 is an apocalyptic number.

204051611 is a deficient number, since it is larger than the sum of its proper divisors (1).

204051611 is an equidigital number, since it uses as much as digits as its factorization.

204051611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 204051611 is about 14284.6634892111. The cubic root of 204051611 is about 588.7261715946.

The spelling of 204051611 in words is "two hundred four million, fifty-one thousand, six hundred eleven".