13181369 has 8 divisors (see below), whose sum is σ = 13805952. Its totient is φ = 12561120.

The previous prime is 13181359. The next prime is 13181393. The reversal of 13181369 is 96318131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13181369 - 2⁴ = 13181353 is a prime.

It is a super-2 number, since 2×13181369² = 347496977428322, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13181309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6284 + ... + 8114.

It is an arithmetic number, because the mean of its divisors is an integer number (1725744).

Almost surely, 2^13181369 is an apocalyptic number.

It is an amenable number.

13181369 is a deficient number, since it is larger than the sum of its proper divisors (624583).

13181369 is a wasteful number, since it uses less digits than its factorization.

13181369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167.

The product of its digits is 3888, while the sum is 32.

The square root of 13181369 is about 3630.6155125543. The cubic root of 13181369 is about 236.2219077671.

The spelling of 13181369 in words is "thirteen million, one hundred eighty-one thousand, three hundred sixty-nine".