204054013 has 2 divisors, whose sum is σ = 204054014. Its totient is φ = 204054012.

The previous prime is 204053959. The next prime is 204054023. The reversal of 204054013 is 310450402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190081369 + 13972644 = 13787^2 + 3738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204054013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204054023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102027006 + 102027007.

It is an arithmetic number, because the mean of its divisors is an integer number (102027007).

Almost surely, 2^204054013 is an apocalyptic number.

It is an amenable number.

204054013 is a deficient number, since it is larger than the sum of its proper divisors (1).

204054013 is an equidigital number, since it uses as much as digits as its factorization.

204054013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 204054013 is about 14284.7475651479. The cubic root of 204054013 is about 588.7284816552.

The spelling of 204054013 in words is "two hundred four million, fifty-four thousand, thirteen".