233042489 has 2 divisors, whose sum is σ = 233042490. Its totient is φ = 233042488.

The previous prime is 233042473. The next prime is 233042527. The reversal of 233042489 is 984240332.

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., 207590464 + 25452025 = 14408^2 + 5045^2 .

It is a cyclic number.

It is not a de Polignac number, because 233042489 - 2⁴ = 233042473 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (233042419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116521244 + 116521245.

It is an arithmetic number, because the mean of its divisors is an integer number (116521245).

Almost surely, 2^233042489 is an apocalyptic number.

It is an amenable number.

233042489 is a deficient number, since it is larger than the sum of its proper divisors (1).

233042489 is an equidigital number, since it uses as much as digits as its factorization.

233042489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 233042489 is about 15265.7292324998. The cubic root of 233042489 is about 615.3823510866.

The spelling of 233042489 in words is "two hundred thirty-three million, forty-two thousand, four hundred eighty-nine".