138416589 has 12 divisors (see below), whose sum is σ = 200112796. Its totient is φ = 92195712.

The previous prime is 138416563. The next prime is 138416651. The reversal of 138416589 is 985614831.

It can be written as a sum of positive squares in 2 ways, for example, as 59028489 + 79388100 = 7683^2 + 8910^2 .

It is not a de Polignac number, because 138416589 - 2⁹ = 138416077 is a prime.

It is a super-2 number, since 2×138416589² = 38318304220789842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138416389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4917 + ... + 17349.

Almost surely, 2^138416589 is an apocalyptic number.

It is an amenable number.

138416589 is a deficient number, since it is larger than the sum of its proper divisors (61696207).

138416589 is a wasteful number, since it uses less digits than its factorization.

138416589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13676 (or 13673 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 138416589 is about 11765.0579684080. The cubic root of 138416589 is about 517.2843994420.

The spelling of 138416589 in words is "one hundred thirty-eight million, four hundred sixteen thousand, five hundred eighty-nine".