13578163 has 2 divisors, whose sum is σ = 13578164. Its totient is φ = 13578162.

The previous prime is 13578161. The next prime is 13578167. The reversal of 13578163 is 36187531.

It is a weak prime.

It is an emirp because it is prime and its reverse (36187531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13578163 - 2¹ = 13578161 is a prime.

Together with 13578161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13578161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6789081 + 6789082.

It is an arithmetic number, because the mean of its divisors is an integer number (6789082).

Almost surely, 2^13578163 is an apocalyptic number.

13578163 is a deficient number, since it is larger than the sum of its proper divisors (1).

13578163 is an equidigital number, since it uses as much as digits as its factorization.

13578163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 13578163 is about 3684.8558994892. The cubic root of 13578163 is about 238.5688145919.

The spelling of 13578163 in words is "thirteen million, five hundred seventy-eight thousand, one hundred sixty-three".