13163191 has 6 divisors (see below), whose sum is σ = 13309800. Its totient is φ = 13018176.

The previous prime is 13163177. The next prime is 13163197. The reversal of 13163191 is 19136131.

It is a happy number.

13163191 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 13163191 - 2⁵ = 13163159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13163197) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8710 + ... + 10108.

It is an arithmetic number, because the mean of its divisors is an integer number (2218300).

Almost surely, 2^13163191 is an apocalyptic number.

13163191 is a deficient number, since it is larger than the sum of its proper divisors (146609).

13163191 is an frugal number, since it uses more digits than its factorization.

13163191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 1496 counting only the distinct ones).

The product of its digits is 486, while the sum is 25.

The square root of 13163191 is about 3628.1112165974. Note that the first 3 decimals coincide. The cubic root of 13163191 is about 236.1132691455.

The spelling of 13163191 in words is "thirteen million, one hundred sixty-three thousand, one hundred ninety-one".