13605241 has 4 divisors (see below), whose sum is σ = 14651812. Its totient is φ = 12558672.

The previous prime is 13605211. The next prime is 13605247. The reversal of 13605241 is 14250631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14250631 = 457 ⋅31183.

It can be written as a sum of positive squares in 2 ways, for example, as 4020025 + 9585216 = 2005^2 + 3096^2 .

It is a cyclic number.

It is not a de Polignac number, because 13605241 - 2⁵ = 13605209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13605247) 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, 523266 + ... + 523291.

It is an arithmetic number, because the mean of its divisors is an integer number (3662953).

Almost surely, 2^13605241 is an apocalyptic number.

It is an amenable number.

13605241 is a deficient number, since it is larger than the sum of its proper divisors (1046571).

13605241 is a wasteful number, since it uses less digits than its factorization.

13605241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046570.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13605241 is about 3688.5282973023. The cubic root of 13605241 is about 238.7272964349.

Adding to 13605241 its reverse (14250631), we get a palindrome (27855872).

The spelling of 13605241 in words is "thirteen million, six hundred five thousand, two hundred forty-one".