205433089 has 2 divisors, whose sum is σ = 205433090. Its totient is φ = 205433088.

The previous prime is 205433077. The next prime is 205433113. The reversal of 205433089 is 980334502.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162307600 + 43125489 = 12740^2 + 6567^2 .

It is a cyclic number.

It is not a de Polignac number, because 205433089 - 2⁵ = 205433057 is a prime.

It is not a weakly prime, because it can be changed into another prime (205433069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102716544 + 102716545.

It is an arithmetic number, because the mean of its divisors is an integer number (102716545).

Almost surely, 2^205433089 is an apocalyptic number.

It is an amenable number.

205433089 is a deficient number, since it is larger than the sum of its proper divisors (1).

205433089 is an equidigital number, since it uses as much as digits as its factorization.

205433089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 205433089 is about 14332.9372077045. The cubic root of 205433089 is about 590.0517899573.

It can be divided in two parts, 20543 and 3089, that added together give a palindrome (23632).

The spelling of 205433089 in words is "two hundred five million, four hundred thirty-three thousand, eighty-nine".