13132591 has 4 divisors (see below), whose sum is σ = 13823800. Its totient is φ = 12441384.

The previous prime is 13132589. The next prime is 13132643. The reversal of 13132591 is 19523131.

13132591 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.

It is a cyclic number.

It is not a de Polignac number, because 13132591 - 2¹ = 13132589 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 (13132291) 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, 345576 + ... + 345613.

It is an arithmetic number, because the mean of its divisors is an integer number (3455950).

Almost surely, 2^13132591 is an apocalyptic number.

13132591 is a deficient number, since it is larger than the sum of its proper divisors (691209).

13132591 is an equidigital number, since it uses as much as digits as its factorization.

13132591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691208.

The product of its digits is 810, while the sum is 25.

The square root of 13132591 is about 3623.8916926420. The cubic root of 13132591 is about 235.9301658261.

The spelling of 13132591 in words is "thirteen million, one hundred thirty-two thousand, five hundred ninety-one".