138107344 has 40 divisors (see below), whose sum is σ = 272260352. Its totient is φ = 67858560.

The previous prime is 138107297. The next prime is 138107351. The reversal of 138107344 is 443701831.

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 7 ways as a sum of consecutive naturals, for example, 298057 + ... + 298519.

Almost surely, 2^138107344 is an apocalyptic number.

It is an amenable number.

138107344 is a deficient number, since it is larger than the sum of its proper divisors (134153008).

138107344 is a wasteful number, since it uses less digits than its factorization.

138107344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 138107344 is about 11751.9081003895. The cubic root of 138107344 is about 516.8988799160.

The spelling of 138107344 in words is "one hundred thirty-eight million, one hundred seven thousand, three hundred forty-four".