100841 has 4 divisors (see below), whose sum is σ = 108612. Its totient is φ = 93072.

The previous prime is 100829. The next prime is 100847. The reversal of 100841 is 148001.

100841 = T₁₁₈ + T₁₁₉ + ... + T₁₃₀.

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: 148001 = 7 ⋅21143.

It can be written as a sum of positive squares in 2 ways, for example, as 48400 + 52441 = 220^2 + 229^2 .

It is a cyclic number.

It is not a de Polignac number, because 100841 - 2¹⁰ = 99817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (100847) 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, 3866 + ... + 3891.

It is an arithmetic number, because the mean of its divisors is an integer number (27153).

2¹⁰⁰⁸⁴¹ is an apocalyptic number.

It is an amenable number.

100841 is a deficient number, since it is larger than the sum of its proper divisors (7771).

100841 is an equidigital number, since it uses as much as digits as its factorization.

100841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 100841 is about 317.5547196941. The cubic root of 100841 is about 46.5456444704.

Adding to 100841 its reverse (148001), we get a palindrome (248842).

It can be divided in two parts, 1008 and 41, that multiplied together give a triangular number (41328 = T₂₈₇).

The spelling of 100841 in words is "one hundred thousand, eight hundred forty-one".