138342752 has 24 divisors (see below), whose sum is σ = 273257712. Its totient is φ = 68944000.

The previous prime is 138342713. The next prime is 138342779. The reversal of 138342752 is 257243831.

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 3 ways as a sum of consecutive naturals, for example, 3002 + ... + 16902.

It is an arithmetic number, because the mean of its divisors is an integer number (11385738).

Almost surely, 2^138342752 is an apocalyptic number.

It is an amenable number.

138342752 is a deficient number, since it is larger than the sum of its proper divisors (134914960).

138342752 is a wasteful number, since it uses less digits than its factorization.

138342752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14222 (or 14214 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 138342752 is about 11761.9195712265. The cubic root of 138342752 is about 517.1924029503.

The spelling of 138342752 in words is "one hundred thirty-eight million, three hundred forty-two thousand, seven hundred fifty-two".