13541321 has 4 divisors (see below), whose sum is σ = 13559700. Its totient is φ = 13522944.

The previous prime is 13541317. The next prime is 13541323. The reversal of 13541321 is 12314531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12314531 = 29 ⋅424639.

It can be written as a sum of positive squares in 2 ways, for example, as 7728400 + 5812921 = 2780^2 + 2411^2 .

It is a cyclic number.

It is not a de Polignac number, because 13541321 - 2² = 13541317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13541293 and 13541302.

It is not an unprimeable number, because it can be changed into a prime (13541323) 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, 8036 + ... + 9573.

It is an arithmetic number, because the mean of its divisors is an integer number (3389925).

Almost surely, 2^13541321 is an apocalyptic number.

It is an amenable number.

13541321 is a deficient number, since it is larger than the sum of its proper divisors (18379).

13541321 is an equidigital number, since it uses as much as digits as its factorization.

13541321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18378.

The product of its digits is 360, while the sum is 20.

The square root of 13541321 is about 3679.8533938188. The cubic root of 13541321 is about 238.3528473869.

Adding to 13541321 its reverse (12314531), we get a palindrome (25855852).

The spelling of 13541321 in words is "thirteen million, five hundred forty-one thousand, three hundred twenty-one".