232216289 has 2 divisors, whose sum is σ = 232216290. Its totient is φ = 232216288.

The previous prime is 232216247. The next prime is 232216301. The reversal of 232216289 is 982612232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198669025 + 33547264 = 14095^2 + 5792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232216289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (232216189) 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, 116108144 + 116108145.

It is an arithmetic number, because the mean of its divisors is an integer number (116108145).

Almost surely, 2^232216289 is an apocalyptic number.

It is an amenable number.

232216289 is a deficient number, since it is larger than the sum of its proper divisors (1).

232216289 is an equidigital number, since it uses as much as digits as its factorization.

232216289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 232216289 is about 15238.6445919576. The cubic root of 232216289 is about 614.6542564987.

The spelling of 232216289 in words is "two hundred thirty-two million, two hundred sixteen thousand, two hundred eighty-nine".