138326 has 4 divisors (see below), whose sum is σ = 207492. Its totient is φ = 69162.

The previous prime is 138323. The next prime is 138337. The reversal of 138326 is 623831.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34580 + ... + 34583.

It is an arithmetic number, because the mean of its divisors is an integer number (51873).

2¹³⁸³²⁶ is an apocalyptic number.

138326 is a deficient number, since it is larger than the sum of its proper divisors (69166).

138326 is an equidigital number, since it uses as much as digits as its factorization.

138326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69165.

The product of its digits is 864, while the sum is 23.

The square root of 138326 is about 371.9220348406. The cubic root of 138326 is about 51.7171526403.

It can be divided in two parts, 138 and 326, that added together give a palindrome (464).

The spelling of 138326 in words is "one hundred thirty-eight thousand, three hundred twenty-six".