180329 has 4 divisors (see below), whose sum is σ = 189840. Its totient is φ = 170820.

The previous prime is 180317. The next prime is 180331. The reversal of 180329 is 923081.

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, and also an emirpimes, since its reverse is a distinct semiprime: 923081 = 43 ⋅21467.

It is a cyclic number.

It is not a de Polignac number, because 180329 - 2⁸ = 180073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180379) 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 3 ways as a sum of consecutive naturals, for example, 4727 + ... + 4764.

It is an arithmetic number, because the mean of its divisors is an integer number (47460).

2¹⁸⁰³²⁹ is an apocalyptic number.

180329 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

180329 is a deficient number, since it is larger than the sum of its proper divisors (9511).

180329 is an equidigital number, since it uses as much as digits as its factorization.

180329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9510.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 180329 is about 424.6516219208. The cubic root of 180329 is about 56.4965408904.

The spelling of 180329 in words is "one hundred eighty thousand, three hundred twenty-nine".