43117 has 2 divisors, whose sum is σ = 43118. Its totient is φ = 43116.

The previous prime is 43103. The next prime is 43133. The reversal of 43117 is 71134.

43117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (43133) can be obtained adding 43117 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35721 + 7396 = 189^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 43117 - 2⁷ = 42989 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 43117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21558 + 21559.

It is an arithmetic number, because the mean of its divisors is an integer number (21559).

2⁴³¹¹⁷ is an apocalyptic number.

It is an amenable number.

43117 is a deficient number, since it is larger than the sum of its proper divisors (1).

43117 is an equidigital number, since it uses as much as digits as its factorization.

43117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84, while the sum is 16.

The square root of 43117 is about 207.6463339431. The cubic root of 43117 is about 35.0657268338.

The spelling of 43117 in words is "forty-three thousand, one hundred seventeen", and thus it is an iban number.