13243871 has 8 divisors (see below), whose sum is σ = 13601280. Its totient is φ = 12888792.

The previous prime is 13243859. The next prime is 13243873. The reversal of 13243871 is 17834231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13243871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13243873) 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, 20276 + ... + 20918.

It is an arithmetic number, because the mean of its divisors is an integer number (1700160).

Almost surely, 2^13243871 is an apocalyptic number.

13243871 is a deficient number, since it is larger than the sum of its proper divisors (357409).

13243871 is an equidigital number, since it uses as much as digits as its factorization.

13243871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165.

The product of its digits is 4032, while the sum is 29.

The square root of 13243871 is about 3639.2129643647. The cubic root of 13243871 is about 236.5946830827.

The spelling of 13243871 in words is "thirteen million, two hundred forty-three thousand, eight hundred seventy-one".