181323 has 6 divisors (see below), whose sum is σ = 261924. Its totient is φ = 120876.

The previous prime is 181303. The next prime is 181361. The reversal of 181323 is 323181.

It is not a de Polignac number, because 181323 - 2⁹ = 180811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 181296 and 181305.

It is not an unprimeable number, because it can be changed into a prime (181303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10065 + ... + 10082.

It is an arithmetic number, because the mean of its divisors is an integer number (43654).

2¹⁸¹³²³ is an apocalyptic number.

181323 is a deficient number, since it is larger than the sum of its proper divisors (80601).

181323 is a wasteful number, since it uses less digits than its factorization.

181323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20153 (or 20150 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 181323 is about 425.8203846694. The cubic root of 181323 is about 56.6001564921.

The spelling of 181323 in words is "one hundred eighty-one thousand, three hundred twenty-three".