204051213 has 12 divisors (see below), whose sum is σ = 295313148. Its totient is φ = 135769920.

The previous prime is 204051181. The next prime is 204051223. The reversal of 204051213 is 312150402.

It can be written as a sum of positive squares in 2 ways, for example, as 16990884 + 187060329 = 4122^2 + 13677^2 .

It is not a de Polignac number, because 204051213 - 2⁵ = 204051181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204051223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17070 + ... + 26447.

It is an arithmetic number, because the mean of its divisors is an integer number (24609429).

Almost surely, 2^204051213 is an apocalyptic number.

It is an amenable number.

204051213 is a deficient number, since it is larger than the sum of its proper divisors (91261935).

204051213 is a wasteful number, since it uses less digits than its factorization.

204051213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44044 (or 44041 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 204051213 is about 14284.6495581796. The cubic root of 204051213 is about 588.7257888268.

The spelling of 204051213 in words is "two hundred four million, fifty-one thousand, two hundred thirteen".