138859744 has 12 divisors (see below), whose sum is σ = 273380184. Its totient is φ = 69429856.

The previous prime is 138859739. The next prime is 138859769. The reversal of 138859744 is 447958831.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2169652 + ... + 2169715.

It is an arithmetic number, because the mean of its divisors is an integer number (22781682).

Almost surely, 2^138859744 is an apocalyptic number.

It is an amenable number.

138859744 is a deficient number, since it is larger than the sum of its proper divisors (134520440).

138859744 is an equidigital number, since it uses as much as digits as its factorization.

138859744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339377 (or 4339369 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 138859744 is about 11783.8764419863. The cubic root of 138859744 is about 517.8358578131.

The spelling of 138859744 in words is "one hundred thirty-eight million, eight hundred fifty-nine thousand, seven hundred forty-four".