13171117 has 4 divisors (see below), whose sum is σ = 13337920. Its totient is φ = 13004316.

The previous prime is 13171097. The next prime is 13171121. The reversal of 13171117 is 71117131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13171117 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 (13171517) 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, 83283 + ... + 83440.

It is an arithmetic number, because the mean of its divisors is an integer number (3334480).

Almost surely, 2^13171117 is an apocalyptic number.

It is an amenable number.

13171117 is a deficient number, since it is larger than the sum of its proper divisors (166803).

13171117 is an equidigital number, since it uses as much as digits as its factorization.

13171117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166802.

The product of its digits is 147, while the sum is 22.

The square root of 13171117 is about 3629.2033561100. The cubic root of 13171117 is about 236.1606502169.

Adding to 13171117 its reverse (71117131), we get a palindrome (84288248).

The spelling of 13171117 in words is "thirteen million, one hundred seventy-one thousand, one hundred seventeen".