43115 has 4 divisors (see below), whose sum is σ = 51744. Its totient is φ = 34488.

The previous prime is 43103. The next prime is 43117. The reversal of 43115 is 51134.

Added to its reverse (51134) it gives a square (94249 = 307²).

43115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43115 - 2⁶ = 43051 is a prime.

It is a Duffinian number.

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 43115.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 43115.

It is not an unprimeable number, because it can be changed into a prime (43117) 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, 4307 + ... + 4316.

It is an arithmetic number, because the mean of its divisors is an integer number (12936).

2⁴³¹¹⁵ is an apocalyptic number.

43115 is a deficient number, since it is larger than the sum of its proper divisors (8629).

43115 is an equidigital number, since it uses as much as digits as its factorization.

43115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8628.

The product of its digits is 60, while the sum is 14.

The square root of 43115 is about 207.6415180064. The cubic root of 43115 is about 35.0651846460.

Adding to 43115 its reverse (51134), we get a palindrome (94249).

The spelling of 43115 in words is "forty-three thousand, one hundred fifteen".