204235013 has 2 divisors, whose sum is σ = 204235014. Its totient is φ = 204235012.

The previous prime is 204235007. The next prime is 204235019. The reversal of 204235013 is 310532402.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (204235007) and next prime (204235019).

It can be written as a sum of positive squares in only one way, i.e., 144528484 + 59706529 = 12022^2 + 7727^2 .

It is a cyclic number.

It is not a de Polignac number, because 204235013 - 2⁴ = 204234997 is a prime.

It is a super-2 number, since 2×204235013² = 83423881070220338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204235019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102117506 + 102117507.

It is an arithmetic number, because the mean of its divisors is an integer number (102117507).

Almost surely, 2^204235013 is an apocalyptic number.

It is an amenable number.

204235013 is a deficient number, since it is larger than the sum of its proper divisors (1).

204235013 is an equidigital number, since it uses as much as digits as its factorization.

204235013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 204235013 is about 14291.0815895789. The cubic root of 204235013 is about 588.9025015339.

Adding to 204235013 its reverse (310532402), we get a palindrome (514767415).

The spelling of 204235013 in words is "two hundred four million, two hundred thirty-five thousand, thirteen".