100791 has 8 divisors (see below), whose sum is σ = 149360. Its totient is φ = 67176.

The previous prime is 100787. The next prime is 100799. The reversal of 100791 is 197001.

It is not a de Polignac number, because 100791 - 2² = 100787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1840 + ... + 1893.

It is an arithmetic number, because the mean of its divisors is an integer number (18670).

2¹⁰⁰⁷⁹¹ is an apocalyptic number.

100791 is a deficient number, since it is larger than the sum of its proper divisors (48569).

100791 is an equidigital number, since it uses as much as digits as its factorization.

100791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742 (or 3736 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 18.

The square root of 100791 is about 317.4759833436. The cubic root of 100791 is about 46.5379502885.

Adding to 100791 its reverse (197001), we get a palindrome (297792).

The spelling of 100791 in words is "one hundred thousand, seven hundred ninety-one".