113785217 has 16 divisors (see below), whose sum is σ = 142423680. Its totient is φ = 88497792.

The previous prime is 113785193. The next prime is 113785219. The reversal of 113785217 is 712587311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 113785217 - 2¹⁰ = 113784193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113785219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5228 + ... + 15965.

It is an arithmetic number, because the mean of its divisors is an integer number (8901480).

Almost surely, 2^113785217 is an apocalyptic number.

It is an amenable number.

113785217 is a deficient number, since it is larger than the sum of its proper divisors (28638463).

113785217 is a wasteful number, since it uses less digits than its factorization.

113785217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21272.

The product of its digits is 11760, while the sum is 35.

The square root of 113785217 is about 10667.0153745085. The cubic root of 113785217 is about 484.5760521010.

The spelling of 113785217 in words is "one hundred thirteen million, seven hundred eighty-five thousand, two hundred seventeen".