217040113 has 8 divisors (see below), whose sum is σ = 226048320. Its totient is φ = 208197360.

The previous prime is 217040111. The next prime is 217040123. The reversal of 217040113 is 311040712.

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

It is a cyclic number.

It is not a de Polignac number, because 217040113 - 2¹ = 217040111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (217040111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38683 + ... + 43936.

It is an arithmetic number, because the mean of its divisors is an integer number (28256040).

Almost surely, 2^217040113 is an apocalyptic number.

It is an amenable number.

217040113 is a deficient number, since it is larger than the sum of its proper divisors (9008207).

217040113 is an equidigital number, since it uses as much as digits as its factorization.

217040113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82727.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 217040113 is about 14732.2813236783. The cubic root of 217040113 is about 600.9615258828.

Adding to 217040113 its reverse (311040712), we get a palindrome (528080825).

The spelling of 217040113 in words is "two hundred seventeen million, forty thousand, one hundred thirteen".