204881029 has 2 divisors, whose sum is σ = 204881030. Its totient is φ = 204881028.

The previous prime is 204881011. The next prime is 204881051. The reversal of 204881029 is 920188402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204633025 + 248004 = 14305^2 + 498^2 .

It is a cyclic number.

It is not a de Polignac number, because 204881029 - 2⁷ = 204880901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204880985 and 204881003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204801029) 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, 102440514 + 102440515.

It is an arithmetic number, because the mean of its divisors is an integer number (102440515).

Almost surely, 2^204881029 is an apocalyptic number.

It is an amenable number.

204881029 is a deficient number, since it is larger than the sum of its proper divisors (1).

204881029 is an equidigital number, since it uses as much as digits as its factorization.

204881029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 204881029 is about 14313.6658127819. The cubic root of 204881029 is about 589.5227673939.

The spelling of 204881029 in words is "two hundred four million, eight hundred eighty-one thousand, twenty-nine".