100943 has 2 divisors, whose sum is σ = 100944. Its totient is φ = 100942.

The previous prime is 100937. The next prime is 100957. The reversal of 100943 is 349001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100943 - 2⁴ = 100927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50471 + 50472.

It is an arithmetic number, because the mean of its divisors is an integer number (50472).

2¹⁰⁰⁹⁴³ is an apocalyptic number.

100943 is a deficient number, since it is larger than the sum of its proper divisors (1).

100943 is an equidigital number, since it uses as much as digits as its factorization.

100943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 100943 is about 317.7152813448. The cubic root of 100943 is about 46.5613327185.

Adding to 100943 its reverse (349001), we get a palindrome (449944).

The spelling of 100943 in words is "one hundred thousand, nine hundred forty-three".