138589598 has 8 divisors (see below), whose sum is σ = 237582192. Its totient is φ = 59395536.

The previous prime is 138589597. The next prime is 138589601. The reversal of 138589598 is 895985831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138589597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4949615 + ... + 4949642.

It is an arithmetic number, because the mean of its divisors is an integer number (29697774).

Almost surely, 2^138589598 is an apocalyptic number.

138589598 is a deficient number, since it is larger than the sum of its proper divisors (98992594).

138589598 is an equidigital number, since it uses as much as digits as its factorization.

138589598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9899266.

The product of its digits is 3110400, while the sum is 56.

The square root of 138589598 is about 11772.4083347461. The cubic root of 138589598 is about 517.4998302566.

The spelling of 138589598 in words is "one hundred thirty-eight million, five hundred eighty-nine thousand, five hundred ninety-eight".