123329 has 4 divisors (see below), whose sum is σ = 129840. Its totient is φ = 116820.

The previous prime is 123323. The next prime is 123341. The reversal of 123329 is 923321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123329 - 2¹² = 119233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123329.

It is not an unprimeable number, because it can be changed into a prime (123323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3227 + ... + 3264.

It is an arithmetic number, because the mean of its divisors is an integer number (32460).

2¹²³³²⁹ is an apocalyptic number.

123329 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

123329 is a deficient number, since it is larger than the sum of its proper divisors (6511).

123329 is an equidigital number, since it uses as much as digits as its factorization.

123329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6510.

The product of its digits is 324, while the sum is 20.

The square root of 123329 is about 351.1822888473. The cubic root of 123329 is about 49.7761997637.

The spelling of 123329 in words is "one hundred twenty-three thousand, three hundred twenty-nine".