204530969 has 2 divisors, whose sum is σ = 204530970. Its totient is φ = 204530968.

The previous prime is 204530941. The next prime is 204530971. The reversal of 204530969 is 969035402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171295744 + 33235225 = 13088^2 + 5765^2 .

It is a cyclic number.

It is not a de Polignac number, because 204530969 - 2¹⁶ = 204465433 is a prime.

It is a super-2 number, since 2×204530969² = 83665834560157922, which contains 22 as substring.

Together with 204530971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204530569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102265484 + 102265485.

It is an arithmetic number, because the mean of its divisors is an integer number (102265485).

Almost surely, 2^204530969 is an apocalyptic number.

It is an amenable number.

204530969 is a deficient number, since it is larger than the sum of its proper divisors (1).

204530969 is an equidigital number, since it uses as much as digits as its factorization.

204530969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 204530969 is about 14301.4324107762. The cubic root of 204530969 is about 589.1868228600.

The spelling of 204530969 in words is "two hundred four million, five hundred thirty thousand, nine hundred sixty-nine".