13361191 has 4 divisors (see below), whose sum is σ = 13530400. Its totient is φ = 13191984.

The previous prime is 13361147. The next prime is 13361209. The reversal of 13361191 is 19116331.

It is a happy number.

13361191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19116331 = 13 ⋅1470487.

It is a cyclic number.

It is not a de Polignac number, because 13361191 - 2⁷ = 13361063 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 (13361291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84486 + ... + 84643.

It is an arithmetic number, because the mean of its divisors is an integer number (3382600).

Almost surely, 2^13361191 is an apocalyptic number.

13361191 is a deficient number, since it is larger than the sum of its proper divisors (169209).

13361191 is an equidigital number, since it uses as much as digits as its factorization.

13361191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169208.

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

The square root of 13361191 is about 3655.2962944199. The cubic root of 13361191 is about 237.2912499992.

The spelling of 13361191 in words is "thirteen million, three hundred sixty-one thousand, one hundred ninety-one".