13671191 has 4 divisors (see below), whose sum is σ = 13929192. Its totient is φ = 13413192.

The previous prime is 13671181. The next prime is 13671193. The reversal of 13671191 is 19117631.

13671191 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13671191 - 2¹⁸ = 13409047 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 (13671193) 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, 128921 + ... + 129026.

It is an arithmetic number, because the mean of its divisors is an integer number (3482298).

Almost surely, 2^13671191 is an apocalyptic number.

13671191 is a deficient number, since it is larger than the sum of its proper divisors (258001).

13671191 is an equidigital number, since it uses as much as digits as its factorization.

13671191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258000.

The product of its digits is 1134, while the sum is 29.

The square root of 13671191 is about 3697.4573695987. The cubic root of 13671191 is about 239.1124101384.

The spelling of 13671191 in words is "thirteen million, six hundred seventy-one thousand, one hundred ninety-one".