138593359 has 4 divisors (see below), whose sum is σ = 138634600. Its totient is φ = 138552120.

The previous prime is 138593327. The next prime is 138593363. The reversal of 138593359 is 953395831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 953395831 = 97 ⋅9828823.

It is a cyclic number.

It is not a de Polignac number, because 138593359 - 2⁵ = 138593327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138593659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15084 + ... + 22465.

It is an arithmetic number, because the mean of its divisors is an integer number (34658650).

Almost surely, 2^138593359 is an apocalyptic number.

138593359 is a deficient number, since it is larger than the sum of its proper divisors (41241).

138593359 is an equidigital number, since it uses as much as digits as its factorization.

138593359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41240.

The product of its digits is 437400, while the sum is 46.

The square root of 138593359 is about 11772.5680715806. The cubic root of 138593359 is about 517.5045114623.

The spelling of 138593359 in words is "one hundred thirty-eight million, five hundred ninety-three thousand, three hundred fifty-nine".