113843 has 2 divisors, whose sum is σ = 113844. Its totient is φ = 113842.

The previous prime is 113837. The next prime is 113891. The reversal of 113843 is 348311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113843 - 2⁶ = 113779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113143) 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 as a sum of consecutive naturals, namely, 56921 + 56922.

It is an arithmetic number, because the mean of its divisors is an integer number (56922).

2¹¹³⁸⁴³ is an apocalyptic number.

113843 is a deficient number, since it is larger than the sum of its proper divisors (1).

113843 is an equidigital number, since it uses as much as digits as its factorization.

113843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 113843 is about 337.4062832847. The cubic root of 113843 is about 48.4658064863.

It can be divided in two parts, 113 and 843, that multiplied together give a palindrome (95259).

The spelling of 113843 in words is "one hundred thirteen thousand, eight hundred forty-three".