13568871 has 4 divisors (see below), whose sum is σ = 18091832. Its totient is φ = 9045912.

The previous prime is 13568861. The next prime is 13568887. The reversal of 13568871 is 17886531.

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

It is not a de Polignac number, because 13568871 - 2⁷ = 13568743 is a prime.

It is a super-2 number, since 2×13568871² = 368228520429282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13568861) 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, 2261476 + ... + 2261481.

It is an arithmetic number, because the mean of its divisors is an integer number (4522958).

Almost surely, 2^13568871 is an apocalyptic number.

13568871 is a deficient number, since it is larger than the sum of its proper divisors (4522961).

13568871 is an equidigital number, since it uses as much as digits as its factorization.

13568871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522960.

The product of its digits is 40320, while the sum is 39.

The square root of 13568871 is about 3683.5948474283. The cubic root of 13568871 is about 238.5143819147.

It can be divided in two parts, 135 and 68871, that added together give a triangular number (69006 = T₃₇₁).

The spelling of 13568871 in words is "thirteen million, five hundred sixty-eight thousand, eight hundred seventy-one".