138533876 has 24 divisors (see below), whose sum is σ = 272436864. Its totient is φ = 61158240.

The previous prime is 138533869. The next prime is 138533881. The reversal of 138533876 is 678335831.

138533876 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 56720 + ... + 59111.

It is an arithmetic number, because the mean of its divisors is an integer number (11351536).

Almost surely, 2^138533876 is an apocalyptic number.

It is an amenable number.

138533876 is a deficient number, since it is larger than the sum of its proper divisors (133902988).

138533876 is a wasteful number, since it uses less digits than its factorization.

138533876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115871 (or 115869 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 138533876 is about 11770.0414612694. The cubic root of 138533876 is about 517.4304648028.

The spelling of 138533876 in words is "one hundred thirty-eight million, five hundred thirty-three thousand, eight hundred seventy-six".