138544594 has 16 divisors (see below), whose sum is σ = 229609728. Its totient is φ = 62362432.

The previous prime is 138544589. The next prime is 138544619. The reversal of 138544594 is 495445831.

It is a self number, because there is not a number n which added to its sum of digits gives 138544594.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87802 + ... + 89365.

It is an arithmetic number, because the mean of its divisors is an integer number (14350608).

Almost surely, 2^138544594 is an apocalyptic number.

138544594 is a deficient number, since it is larger than the sum of its proper divisors (91065134).

138544594 is a wasteful number, since it uses less digits than its factorization.

138544594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177209.

The product of its digits is 345600, while the sum is 43.

The square root of 138544594 is about 11770.4967609698. The cubic root of 138544594 is about 517.4438085347.

The spelling of 138544594 in words is "one hundred thirty-eight million, five hundred forty-four thousand, five hundred ninety-four".