138792755 has 8 divisors (see below), whose sum is σ = 167670000. Its totient is φ = 110288416.

The previous prime is 138792733. The next prime is 138792761. The reversal of 138792755 is 557297831.

138792755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138792755 - 2¹² = 138788659 is a prime.

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, 92405 + ... + 93894.

It is an arithmetic number, because the mean of its divisors is an integer number (20958750).

Almost surely, 2^138792755 is an apocalyptic number.

138792755 is a deficient number, since it is larger than the sum of its proper divisors (28877245).

138792755 is a wasteful number, since it uses less digits than its factorization.

138792755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186453.

The product of its digits is 529200, while the sum is 47.

The square root of 138792755 is about 11781.0336982796. The cubic root of 138792755 is about 517.7525726097.

The spelling of 138792755 in words is "one hundred thirty-eight million, seven hundred ninety-two thousand, seven hundred fifty-five".