204254081 has 2 divisors, whose sum is σ = 204254082. Its totient is φ = 204254080.

The previous prime is 204254051. The next prime is 204254101. The reversal of 204254081 is 180452402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199374400 + 4879681 = 14120^2 + 2209^2 .

It is a cyclic number.

It is not a de Polignac number, because 204254081 - 2¹⁴ = 204237697 is a prime.

It is a super-2 number, since 2×204254081² = 83439459210309122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204254081.

It is not a weakly prime, because it can be changed into another prime (204254051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102127040 + 102127041.

It is an arithmetic number, because the mean of its divisors is an integer number (102127041).

Almost surely, 2^204254081 is an apocalyptic number.

It is an amenable number.

204254081 is a deficient number, since it is larger than the sum of its proper divisors (1).

204254081 is an equidigital number, since it uses as much as digits as its factorization.

204254081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 204254081 is about 14291.7487033603. The cubic root of 204254081 is about 588.9208282045.

The spelling of 204254081 in words is "two hundred four million, two hundred fifty-four thousand, eighty-one".