13299521 has 8 divisors (see below), whose sum is σ = 13478400. Its totient is φ = 13122160.

The previous prime is 13299467. The next prime is 13299553. The reversal of 13299521 is 12599231.

13299521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13299521 - 2¹⁰ = 13298497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13299581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33995 + ... + 34383.

It is an arithmetic number, because the mean of its divisors is an integer number (1684800).

Almost surely, 2^13299521 is an apocalyptic number.

It is an amenable number.

13299521 is a deficient number, since it is larger than the sum of its proper divisors (178879).

13299521 is a wasteful number, since it uses less digits than its factorization.

13299521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its digits is 4860, while the sum is 32.

The square root of 13299521 is about 3646.8508332533. The cubic root of 13299521 is about 236.9256058525.

The spelling of 13299521 in words is "thirteen million, two hundred ninety-nine thousand, five hundred twenty-one".