13287243 has 8 divisors (see below), whose sum is σ = 17740800. Its totient is φ = 8845928.

The previous prime is 13287233. The next prime is 13287269. The reversal of 13287243 is 34278231.

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 13287243 - 2⁴ = 13287227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13287243.

It is not an unprimeable number, because it can be changed into a prime (13287223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123 + ... + 5156.

It is an arithmetic number, because the mean of its divisors is an integer number (2217600).

Almost surely, 2^13287243 is an apocalyptic number.

13287243 is a deficient number, since it is larger than the sum of its proper divisors (4453557).

13287243 is an equidigital number, since it uses as much as digits as its factorization.

13287243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121.

The product of its digits is 8064, while the sum is 30.

The square root of 13287243 is about 3645.1670743602. The cubic root of 13287243 is about 236.8526741976.

It can be divided in two parts, 13287 and 243, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 13287243 in words is "thirteen million, two hundred eighty-seven thousand, two hundred forty-three".