13531163 has 2 divisors, whose sum is σ = 13531164. Its totient is φ = 13531162.

The previous prime is 13531157. The next prime is 13531171. The reversal of 13531163 is 36113531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13531163 is a prime.

It is not a weakly prime, because it can be changed into another prime (13531103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765581 + 6765582.

It is an arithmetic number, because the mean of its divisors is an integer number (6765582).

Almost surely, 2^13531163 is an apocalyptic number.

13531163 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531163 is an equidigital number, since it uses as much as digits as its factorization.

13531163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 23.

The square root of 13531163 is about 3678.4729168501. The cubic root of 13531163 is about 238.2932324771.

Adding to 13531163 its reverse (36113531), we get a palindrome (49644694).

The spelling of 13531163 in words is "thirteen million, five hundred thirty-one thousand, one hundred sixty-three".