13531043 has 2 divisors, whose sum is σ = 13531044. Its totient is φ = 13531042.

The previous prime is 13531019. The next prime is 13531057. The reversal of 13531043 is 34013531.

It is a happy number.

13531043 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13531043 - 2¹⁰ = 13530019 is a prime.

It is not a weakly prime, because it can be changed into another prime (13531073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765521 + 6765522.

It is an arithmetic number, because the mean of its divisors is an integer number (6765522).

Almost surely, 2^13531043 is an apocalyptic number.

13531043 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531043 is an equidigital number, since it uses as much as digits as its factorization.

13531043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 13531043 is about 3678.4566056976. The cubic root of 13531043 is about 238.2925280470.

Adding to 13531043 its reverse (34013531), we get a palindrome (47544574).

The spelling of 13531043 in words is "thirteen million, five hundred thirty-one thousand, forty-three".