13983191 has 4 divisors (see below), whose sum is σ = 14465400. Its totient is φ = 13500984.

The previous prime is 13983169. The next prime is 13983209. The reversal of 13983191 is 19138931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19138931 = 7 ⋅2734133.

It is a cyclic number.

It is not a de Polignac number, because 13983191 - 2¹⁴ = 13966807 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 (13983121) 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, 241061 + ... + 241118.

It is an arithmetic number, because the mean of its divisors is an integer number (3616350).

Almost surely, 2^13983191 is an apocalyptic number.

13983191 is a deficient number, since it is larger than the sum of its proper divisors (482209).

13983191 is an equidigital number, since it uses as much as digits as its factorization.

13983191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482208.

The product of its digits is 5832, while the sum is 35.

The square root of 13983191 is about 3739.4105150411. The cubic root of 13983191 is about 240.9177304517.

The spelling of 13983191 in words is "thirteen million, nine hundred eighty-three thousand, one hundred ninety-one".