13603543 has 2 divisors, whose sum is σ = 13603544. Its totient is φ = 13603542.

The previous prime is 13603517. The next prime is 13603547. The reversal of 13603543 is 34530631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13603543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13603547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6801771 + 6801772.

It is an arithmetic number, because the mean of its divisors is an integer number (6801772).

Almost surely, 2^13603543 is an apocalyptic number.

13603543 is a deficient number, since it is larger than the sum of its proper divisors (1).

13603543 is an equidigital number, since it uses as much as digits as its factorization.

13603543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 13603543 is about 3688.2981170182. The cubic root of 13603543 is about 238.7173645806.

The spelling of 13603543 in words is "thirteen million, six hundred three thousand, five hundred forty-three".