106605091 has 2 divisors, whose sum is σ = 106605092. Its totient is φ = 106605090.

The previous prime is 106605089. The next prime is 106605133. The reversal of 106605091 is 190506601.

It is a weak prime.

It is an emirp because it is prime and its reverse (190506601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106605091 - 2¹ = 106605089 is a prime.

It is a super-2 number, since 2×106605091² = 22729290854236562, which contains 22 as substring.

Together with 106605089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (106605791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53302545 + 53302546.

It is an arithmetic number, because the mean of its divisors is an integer number (53302546).

Almost surely, 2^106605091 is an apocalyptic number.

106605091 is a deficient number, since it is larger than the sum of its proper divisors (1).

106605091 is an equidigital number, since it uses as much as digits as its factorization.

106605091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 106605091 is about 10324.9741404035. The cubic root of 106605091 is about 474.1611655010.

It can be divided in two parts, 10660 and 5091, that added together give a palindrome (15751).

The spelling of 106605091 in words is "one hundred six million, six hundred five thousand, ninety-one".