13645317 has 8 divisors (see below), whose sum is σ = 20792896. Its totient is φ = 7797312.

The previous prime is 13645259. The next prime is 13645321. The reversal of 13645317 is 71354631.

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

It is not a de Polignac number, because 13645317 - 2¹⁵ = 13612549 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 (13645367) 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, 324868 + ... + 324909.

It is an arithmetic number, because the mean of its divisors is an integer number (2599112).

Almost surely, 2^13645317 is an apocalyptic number.

It is an amenable number.

13645317 is a deficient number, since it is larger than the sum of its proper divisors (7147579).

13645317 is an equidigital number, since it uses as much as digits as its factorization.

13645317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649787.

The product of its digits is 7560, while the sum is 30.

The square root of 13645317 is about 3693.9568216210. The cubic root of 13645317 is about 238.9614673849.

Adding to 13645317 its reverse (71354631), we get a palindrome (84999948).

The spelling of 13645317 in words is "thirteen million, six hundred forty-five thousand, three hundred seventeen".