323138 has 4 divisors (see below), whose sum is σ = 484710. Its totient is φ = 161568.

The previous prime is 323137. The next prime is 323149. The reversal of 323138 is 831323.

323138 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in only one way, i.e., 243049 + 80089 = 493^2 + 283^2 .

It is not an unprimeable number, because it can be changed into a prime (323131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80783 + ... + 80786.

2³²³¹³⁸ is an apocalyptic number.

323138 is a deficient number, since it is larger than the sum of its proper divisors (161572).

323138 is a wasteful number, since it uses less digits than its factorization.

323138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161571.

The product of its digits is 432, while the sum is 20.

The square root of 323138 is about 568.4522847170. The cubic root of 323138 is about 68.6218903527.

The spelling of 323138 in words is "three hundred twenty-three thousand, one hundred thirty-eight".