233505089 has 2 divisors, whose sum is σ = 233505090. Its totient is φ = 233505088.

The previous prime is 233505061. The next prime is 233505101. The reversal of 233505089 is 980505332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201412864 + 32092225 = 14192^2 + 5665^2 .

It is a cyclic number.

It is not a de Polignac number, because 233505089 - 2⁸ = 233504833 is a prime.

It is a super-3 number, since 3×233505089³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (233505689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116752544 + 116752545.

It is an arithmetic number, because the mean of its divisors is an integer number (116752545).

Almost surely, 2^233505089 is an apocalyptic number.

It is an amenable number.

233505089 is a deficient number, since it is larger than the sum of its proper divisors (1).

233505089 is an equidigital number, since it uses as much as digits as its factorization.

233505089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 233505089 is about 15280.8733061956. The cubic root of 233505089 is about 615.7892693263.

The spelling of 233505089 in words is "two hundred thirty-three million, five hundred five thousand, eighty-nine".