100766 has 4 divisors (see below), whose sum is σ = 151152. Its totient is φ = 50382.

The previous prime is 100747. The next prime is 100769. The reversal of 100766 is 667001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 667001 = 73 ⋅9137.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100769) by changing a digit.

100766 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25190 + ... + 25193.

It is an arithmetic number, because the mean of its divisors is an integer number (37788).

2¹⁰⁰⁷⁶⁶ is an apocalyptic number.

100766 is a deficient number, since it is larger than the sum of its proper divisors (50386).

100766 is an equidigital number, since it uses as much as digits as its factorization.

100766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50385.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 100766 is about 317.4366078448. The cubic root of 100766 is about 46.5341022433.

Adding to 100766 its reverse (667001), we get a palindrome (767767).

The spelling of 100766 in words is "one hundred thousand, seven hundred sixty-six".