13249329 has 4 divisors (see below), whose sum is σ = 17665776. Its totient is φ = 8832884.

The previous prime is 13249321. The next prime is 13249331. The reversal of 13249329 is 92394231.

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 13249329 - 2³ = 13249321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13249329.

It is not an unprimeable number, because it can be changed into a prime (13249321) 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, 2208219 + ... + 2208224.

It is an arithmetic number, because the mean of its divisors is an integer number (4416444).

Almost surely, 2^13249329 is an apocalyptic number.

It is an amenable number.

13249329 is a deficient number, since it is larger than the sum of its proper divisors (4416447).

13249329 is an equidigital number, since it uses as much as digits as its factorization.

13249329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416446.

The product of its digits is 11664, while the sum is 33.

The square root of 13249329 is about 3639.9627745349. The cubic root of 13249329 is about 236.6271800375.

The spelling of 13249329 in words is "thirteen million, two hundred forty-nine thousand, three hundred twenty-nine".