102289589 has 2 divisors, whose sum is σ = 102289590. Its totient is φ = 102289588.

The previous prime is 102289549. The next prime is 102289591. The reversal of 102289589 is 985982201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95746225 + 6543364 = 9785^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 102289589 - 2¹⁶ = 102224053 is a prime.

Together with 102289591, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102289519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51144794 + 51144795.

It is an arithmetic number, because the mean of its divisors is an integer number (51144795).

Almost surely, 2^102289589 is an apocalyptic number.

It is an amenable number.

102289589 is a deficient number, since it is larger than the sum of its proper divisors (1).

102289589 is an equidigital number, since it uses as much as digits as its factorization.

102289589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 102289589 is about 10113.8315686984. The cubic root of 102289589 is about 467.6746298716.

The spelling of 102289589 in words is "one hundred two million, two hundred eighty-nine thousand, five hundred eighty-nine".