138322 has 16 divisors (see below), whose sum is σ = 225792. Its totient is φ = 63360.

The previous prime is 138319. The next prime is 138323. The reversal of 138322 is 223831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 138322.

It is not an unprimeable number, because it can be changed into a prime (138323) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1378 + ... + 1474.

It is an arithmetic number, because the mean of its divisors is an integer number (14112).

2¹³⁸³²² is an apocalyptic number.

138322 is a deficient number, since it is larger than the sum of its proper divisors (87470).

138322 is a wasteful number, since it uses less digits than its factorization.

138322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153.

The product of its digits is 288, while the sum is 19.

The square root of 138322 is about 371.9166573306. The cubic root of 138322 is about 51.7166541305.

The spelling of 138322 in words is "one hundred thirty-eight thousand, three hundred twenty-two".