204201871 has 2 divisors, whose sum is σ = 204201872. Its totient is φ = 204201870.

The previous prime is 204201817. The next prime is 204201919. The reversal of 204201871 is 178102402.

It is a happy number.

Together with previous prime (204201817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204201871 - 2²¹ = 202104719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204202871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102100935 + 102100936.

It is an arithmetic number, because the mean of its divisors is an integer number (102100936).

Almost surely, 2^204201871 is an apocalyptic number.

204201871 is a deficient number, since it is larger than the sum of its proper divisors (1).

204201871 is an equidigital number, since it uses as much as digits as its factorization.

204201871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 204201871 is about 14289.9220081846. The cubic root of 204201871 is about 588.8706453204.

The spelling of 204201871 in words is "two hundred four million, two hundred one thousand, eight hundred seventy-one".