13491133 has 4 divisors (see below), whose sum is σ = 14077728. Its totient is φ = 12904540.

The previous prime is 13491131. The next prime is 13491143. The reversal of 13491133 is 33119431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13491133 - 2¹ = 13491131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13491098 and 13491107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13491131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293263 + ... + 293308.

It is an arithmetic number, because the mean of its divisors is an integer number (3519432).

Almost surely, 2^13491133 is an apocalyptic number.

It is an amenable number.

13491133 is a deficient number, since it is larger than the sum of its proper divisors (586595).

13491133 is an equidigital number, since it uses as much as digits as its factorization.

13491133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586594.

The product of its digits is 972, while the sum is 25.

The square root of 13491133 is about 3673.0277701101. The cubic root of 13491133 is about 238.0580149511.

The spelling of 13491133 in words is "thirteen million, four hundred ninety-one thousand, one hundred thirty-three".