13299249 has 16 divisors (see below), whose sum is σ = 18167040. Its totient is φ = 8651280.

The previous prime is 13299239. The next prime is 13299263. The reversal of 13299249 is 94299231.

It is not a de Polignac number, because 13299249 - 2⁹ = 13298737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13299229) 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 15 ways as a sum of consecutive naturals, for example, 40014 + ... + 40344.

It is an arithmetic number, because the mean of its divisors is an integer number (1135440).

Almost surely, 2^13299249 is an apocalyptic number.

It is an amenable number.

13299249 is a deficient number, since it is larger than the sum of its proper divisors (4867791).

13299249 is a wasteful number, since it uses less digits than its factorization.

13299249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620.

The product of its digits is 34992, while the sum is 39.

The square root of 13299249 is about 3646.8135406132. The cubic root of 13299249 is about 236.9239906514.

It can be divided in two parts, 13299 and 249, that multiplied together give a triangular number (3311451 = T₂₅₇₃).

The spelling of 13299249 in words is "thirteen million, two hundred ninety-nine thousand, two hundred forty-nine".