138360589 has 2 divisors, whose sum is σ = 138360590. Its totient is φ = 138360588.

The previous prime is 138360583. The next prime is 138360601. The reversal of 138360589 is 985063831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137241225 + 1119364 = 11715^2 + 1058^2 .

It is an emirp because it is prime and its reverse (985063831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138360589 - 2⁹ = 138360077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138360583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69180294 + 69180295.

It is an arithmetic number, because the mean of its divisors is an integer number (69180295).

Almost surely, 2^138360589 is an apocalyptic number.

It is an amenable number.

138360589 is a deficient number, since it is larger than the sum of its proper divisors (1).

138360589 is an equidigital number, since it uses as much as digits as its factorization.

138360589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 138360589 is about 11762.6777988688. The cubic root of 138360589 is about 517.2146297850.

The spelling of 138360589 in words is "one hundred thirty-eight million, three hundred sixty thousand, five hundred eighty-nine".