106091 has 4 divisors (see below), whose sum is σ = 106752. Its totient is φ = 105432.

The previous prime is 106087. The next prime is 106103. The reversal of 106091 is 190601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 190601 = 23 ⋅8287.

It is a cyclic number.

It is not a de Polignac number, because 106091 - 2² = 106087 is a prime.

It is a super-2 number, since 2×106091² = 22510600562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86 + ... + 468.

It is an arithmetic number, because the mean of its divisors is an integer number (26688).

2¹⁰⁶⁰⁹¹ is an apocalyptic number.

106091 is a deficient number, since it is larger than the sum of its proper divisors (661).

106091 is an equidigital number, since it uses as much as digits as its factorization.

106091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 106091 is about 325.7161340800. The cubic root of 106091 is about 47.3397740800.

Adding to 106091 its reverse (190601), we get a palindrome (296692).

The spelling of 106091 in words is "one hundred six thousand, ninety-one".