329138 has 4 divisors (see below), whose sum is σ = 493710. Its totient is φ = 164568.

The previous prime is 329123. The next prime is 329143. The reversal of 329138 is 831923.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831923 = 29 ⋅28687.

It can be written as a sum of positive squares in only one way, i.e., 299209 + 29929 = 547^2 + 173^2 .

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 329138.

It is an unprimeable number.

329138 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82283 + ... + 82286.

2³²⁹¹³⁸ is an apocalyptic number.

329138 is a deficient number, since it is larger than the sum of its proper divisors (164572).

329138 is a wasteful number, since it uses less digits than its factorization.

329138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164571.

The product of its digits is 1296, while the sum is 26.

The square root of 329138 is about 573.7054993636. The cubic root of 329138 is about 69.0440102902.

The spelling of 329138 in words is "three hundred twenty-nine thousand, one hundred thirty-eight".