13557163 has 2 divisors, whose sum is σ = 13557164. Its totient is φ = 13557162.

The previous prime is 13557161. The next prime is 13557179. The reversal of 13557163 is 36175531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13557163 - 2¹ = 13557161 is a prime.

Together with 13557161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13557161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6778581 + 6778582.

It is an arithmetic number, because the mean of its divisors is an integer number (6778582).

Almost surely, 2^13557163 is an apocalyptic number.

13557163 is a deficient number, since it is larger than the sum of its proper divisors (1).

13557163 is an equidigital number, since it uses as much as digits as its factorization.

13557163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 31.

The square root of 13557163 is about 3682.0052960310. The cubic root of 13557163 is about 238.4457608788.

The spelling of 13557163 in words is "thirteen million, five hundred fifty-seven thousand, one hundred sixty-three".