13013541 has 20 divisors (see below), whose sum is σ = 19538112. Its totient is φ = 8632008.

The previous prime is 13013527. The next prime is 13013543. The reversal of 13013541 is 14531031.

It is not a de Polignac number, because 13013541 - 2⁵ = 13013509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013543) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27876 + ... + 28338.

Almost surely, 2^13013541 is an apocalyptic number.

It is an amenable number.

13013541 is a deficient number, since it is larger than the sum of its proper divisors (6524571).

13013541 is an equidigital number, since it uses as much as digits as its factorization.

13013541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 13013541 is about 3607.4285855717. The cubic root of 13013541 is about 235.2150799890.

Adding to 13013541 its reverse (14531031), we get a palindrome (27544572).

The spelling of 13013541 in words is "thirteen million, thirteen thousand, five hundred forty-one".