138336748 has 24 divisors (see below), whose sum is σ = 264836880. Its totient is φ = 62704320.

The previous prime is 138336721. The next prime is 138336761. The reversal of 138336748 is 847633831.

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, 12198 + ... + 20626.

It is an arithmetic number, because the mean of its divisors is an integer number (11034870).

Almost surely, 2^138336748 is an apocalyptic number.

It is an amenable number.

138336748 is a deficient number, since it is larger than the sum of its proper divisors (126500132).

138336748 is a wasteful number, since it uses less digits than its factorization.

138336748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817 (or 8815 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 138336748 is about 11761.6643380093. The cubic root of 138336748 is about 517.1849208860.

The spelling of 138336748 in words is "one hundred thirty-eight million, three hundred thirty-six thousand, seven hundred forty-eight".