13503541 has 2 divisors, whose sum is σ = 13503542. Its totient is φ = 13503540.

The previous prime is 13503533. The next prime is 13503563. The reversal of 13503541 is 14530531.

It is a happy number.

It is an a-pointer prime, because the next prime (13503563) can be obtained adding 13503541 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12744900 + 758641 = 3570^2 + 871^2 .

It is an emirp because it is prime and its reverse (14530531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13503541 - 2³ = 13503533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13503521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6751770 + 6751771.

It is an arithmetic number, because the mean of its divisors is an integer number (6751771).

Almost surely, 2^13503541 is an apocalyptic number.

It is an amenable number.

13503541 is a deficient number, since it is larger than the sum of its proper divisors (1).

13503541 is an equidigital number, since it uses as much as digits as its factorization.

13503541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13503541 is about 3674.7164516463. The cubic root of 13503541 is about 238.1309744461.

The spelling of 13503541 in words is "thirteen million, five hundred three thousand, five hundred forty-one".