138302 has 4 divisors (see below), whose sum is σ = 207456. Its totient is φ = 69150.

The previous prime is 138289. The next prime is 138311. The reversal of 138302 is 203831.

138302 is nontrivially palindromic in base 15.

138302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 203831 = 317 ⋅643.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34574 + ... + 34577.

It is an arithmetic number, because the mean of its divisors is an integer number (51864).

2¹³⁸³⁰² is an apocalyptic number.

138302 is a deficient number, since it is larger than the sum of its proper divisors (69154).

138302 is an equidigital number, since it uses as much as digits as its factorization.

138302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69153.

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

The square root of 138302 is about 371.8897686143. The cubic root of 138302 is about 51.7141614373.

The spelling of 138302 in words is "one hundred thirty-eight thousand, three hundred two".