13190591 has 4 divisors (see below), whose sum is σ = 13198272. Its totient is φ = 13182912.

The previous prime is 13190557. The next prime is 13190599. The reversal of 13190591 is 19509131.

13190591 is digitally balanced in base 3, 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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 19509131 = 317 ⋅61543.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13190591 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 (13190599) 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, 50 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (3299568).

Almost surely, 2^13190591 is an apocalyptic number.

13190591 is a deficient number, since it is larger than the sum of its proper divisors (7681).

13190591 is an equidigital number, since it uses as much as digits as its factorization.

13190591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7680.

The product of its (nonzero) digits is 1215, while the sum is 29.

The square root of 13190591 is about 3631.8853230795. The cubic root of 13190591 is about 236.2769837510.

The spelling of 13190591 in words is "thirteen million, one hundred ninety thousand, five hundred ninety-one".