204055213 has 2 divisors, whose sum is σ = 204055214. Its totient is φ = 204055212.

The previous prime is 204055177. The next prime is 204055273. The reversal of 204055213 is 312550402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122279364 + 81775849 = 11058^2 + 9043^2 .

It is a cyclic number.

It is not a de Polignac number, because 204055213 - 2¹³ = 204047021 is a prime.

It is equal to p_11291044 and since 204055213 and 11291044 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204055273) 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, 102027606 + 102027607.

It is an arithmetic number, because the mean of its divisors is an integer number (102027607).

Almost surely, 2^204055213 is an apocalyptic number.

It is an amenable number.

204055213 is a deficient number, since it is larger than the sum of its proper divisors (1).

204055213 is an equidigital number, since it uses as much as digits as its factorization.

204055213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 204055213 is about 14284.7895679285. The cubic root of 204055213 is about 588.7296357169.

The spelling of 204055213 in words is "two hundred four million, fifty-five thousand, two hundred thirteen".