138932 has 12 divisors (see below), whose sum is σ = 248640. Its totient is φ = 67896.

The previous prime is 138923. The next prime is 138937. The reversal of 138932 is 239831.

138932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138937) by changing a digit.

138932 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182 + ... + 557.

It is an arithmetic number, because the mean of its divisors is an integer number (20720).

2¹³⁸⁹³² is an apocalyptic number.

It is an amenable number.

138932 is a deficient number, since it is larger than the sum of its proper divisors (109708).

138932 is a wasteful number, since it uses less digits than its factorization.

138932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 788 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 138932 is about 372.7358313873. The cubic root of 138932 is about 51.7925661281.

The spelling of 138932 in words is "one hundred thirty-eight thousand, nine hundred thirty-two".