13297181 has 4 divisors (see below), whose sum is σ = 13457472. Its totient is φ = 13136892.

The previous prime is 13297177. The next prime is 13297183. The reversal of 13297181 is 18179231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13297181 - 2² = 13297177 is a prime.

It is a super-2 number, since 2×13297181² = 353630045093522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13297183) 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 in 3 ways as a sum of consecutive naturals, for example, 80021 + ... + 80186.

It is an arithmetic number, because the mean of its divisors is an integer number (3364368).

Almost surely, 2^13297181 is an apocalyptic number.

It is an amenable number.

13297181 is a deficient number, since it is larger than the sum of its proper divisors (160291).

13297181 is an equidigital number, since it uses as much as digits as its factorization.

13297181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160290.

The product of its digits is 3024, while the sum is 32.

The square root of 13297181 is about 3646.5299943919. The cubic root of 13297181 is about 236.9117096519.

The spelling of 13297181 in words is "thirteen million, two hundred ninety-seven thousand, one hundred eighty-one".