138032 has 10 divisors (see below), whose sum is σ = 267468. Its totient is φ = 69008.

The previous prime is 138007. The next prime is 138041. The reversal of 138032 is 230831.

It is a self number, because there is not a number n which added to its sum of digits gives 138032.

It is an unprimeable number.

138032 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4298 + ... + 4329.

2¹³⁸⁰³² is an apocalyptic number.

It is an amenable number.

138032 is a deficient number, since it is larger than the sum of its proper divisors (129436).

138032 is an equidigital number, since it uses as much as digits as its factorization.

138032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8635 (or 8629 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 138032 is about 371.5265804757. The cubic root of 138032 is about 51.6804865332.

Adding to 138032 its reverse (230831), we get a palindrome (368863).

The spelling of 138032 in words is "one hundred thirty-eight thousand, thirty-two".