13003541 has 4 divisors (see below), whose sum is σ = 13224000. Its totient is φ = 12783084.

The previous prime is 13003531. The next prime is 13003547. The reversal of 13003541 is 14530031.

13003541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14530031 = 41 ⋅354391.

It is a cyclic number.

It is not a de Polignac number, because 13003541 - 2¹⁸ = 12741397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13003547) 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, 110141 + ... + 110258.

It is an arithmetic number, because the mean of its divisors is an integer number (3306000).

Almost surely, 2^13003541 is an apocalyptic number.

It is an amenable number.

13003541 is a deficient number, since it is larger than the sum of its proper divisors (220459).

13003541 is an equidigital number, since it uses as much as digits as its factorization.

13003541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220458.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13003541 is about 3606.0422903787. The cubic root of 13003541 is about 235.1548157471.

Adding to 13003541 its reverse (14530031), we get a palindrome (27533572).

The spelling of 13003541 in words is "thirteen million, three thousand, five hundred forty-one".