13649133 has 4 divisors (see below), whose sum is σ = 18198848. Its totient is φ = 9099420.

The previous prime is 13649123. The next prime is 13649159. The reversal of 13649133 is 33194631.

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 not a de Polignac number, because 13649133 - 2⁴ = 13649117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13649133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13649123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2274853 + ... + 2274858.

It is an arithmetic number, because the mean of its divisors is an integer number (4549712).

Almost surely, 2^13649133 is an apocalyptic number.

It is an amenable number.

13649133 is a deficient number, since it is larger than the sum of its proper divisors (4549715).

13649133 is an equidigital number, since it uses as much as digits as its factorization.

13649133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549714.

The product of its digits is 5832, while the sum is 30.

The square root of 13649133 is about 3694.4733048163. The cubic root of 13649133 is about 238.9837410086.

The spelling of 13649133 in words is "thirteen million, six hundred forty-nine thousand, one hundred thirty-three".