101843 has 4 divisors (see below), whose sum is σ = 116400. Its totient is φ = 87288.

The previous prime is 101839. The next prime is 101863. The reversal of 101843 is 348101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348101 = 13 ⋅26777.

It is a cyclic number.

It is not a de Polignac number, because 101843 - 2² = 101839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101833) 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, 7268 + ... + 7281.

It is an arithmetic number, because the mean of its divisors is an integer number (29100).

2¹⁰¹⁸⁴³ is an apocalyptic number.

101843 is a deficient number, since it is larger than the sum of its proper divisors (14557).

101843 is an equidigital number, since it uses as much as digits as its factorization.

101843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14556.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 101843 is about 319.1285007642. The cubic root of 101843 is about 46.6993025679.

Adding to 101843 its reverse (348101), we get a palindrome (449944).

The spelling of 101843 in words is "one hundred one thousand, eight hundred forty-three".