138559374 has 24 divisors (see below), whose sum is σ = 300473472. Its totient is φ = 46146240.

The previous prime is 138559273. The next prime is 138559391. The reversal of 138559374 is 473955831.

138559374 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 23862 + ... + 29094.

It is an arithmetic number, because the mean of its divisors is an integer number (12519728).

Almost surely, 2^138559374 is an apocalyptic number.

138559374 is an abundant number, since it is smaller than the sum of its proper divisors (161914098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138559374 is a wasteful number, since it uses less digits than its factorization.

138559374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6712 (or 6709 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 138559374 is about 11771.1245851873. The cubic root of 138559374 is about 517.4622082603.

The spelling of 138559374 in words is "one hundred thirty-eight million, five hundred fifty-nine thousand, three hundred seventy-four".