13713243 has 4 divisors (see below), whose sum is σ = 18284328. Its totient is φ = 9142160.

The previous prime is 13713239. The next prime is 13713247. The reversal of 13713243 is 34231731.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13713239) and next prime (13713247).

It is a cyclic number.

It is not a de Polignac number, because 13713243 - 2² = 13713239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13713247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2285538 + ... + 2285543.

It is an arithmetic number, because the mean of its divisors is an integer number (4571082).

Almost surely, 2^13713243 is an apocalyptic number.

13713243 is a deficient number, since it is larger than the sum of its proper divisors (4571085).

13713243 is an equidigital number, since it uses as much as digits as its factorization.

13713243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571084.

The product of its digits is 1512, while the sum is 24.

The square root of 13713243 is about 3703.1396138952. The cubic root of 13713243 is about 239.3573257157.

Subtracting from 13713243 its product of digits (1512), we obtain a palindrome (13711731).

Adding to 13713243 its reverse (34231731), we get a palindrome (47944974).

The spelling of 13713243 in words is "thirteen million, seven hundred thirteen thousand, two hundred forty-three".