13581323 has 8 divisors (see below), whose sum is σ = 15618048. Its totient is φ = 11568744.

The previous prime is 13581319. The next prime is 13581349. The reversal of 13581323 is 32318531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13581323 - 2² = 13581319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13581292 and 13581301.

It is not an unprimeable number, because it can be changed into a prime (13581313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4811 + ... + 7092.

It is an arithmetic number, because the mean of its divisors is an integer number (1952256).

Almost surely, 2^13581323 is an apocalyptic number.

13581323 is a deficient number, since it is larger than the sum of its proper divisors (2036725).

13581323 is a wasteful number, since it uses less digits than its factorization.

13581323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12073.

The product of its digits is 2160, while the sum is 26.

The square root of 13581323 is about 3685.2846565767. The cubic root of 13581323 is about 238.5873202611.

Adding to 13581323 its reverse (32318531), we get a palindrome (45899854).

The spelling of 13581323 in words is "thirteen million, five hundred eighty-one thousand, three hundred twenty-three".