106506005 has 4 divisors (see below), whose sum is σ = 127807212. Its totient is φ = 85204800.

The previous prime is 106505999. The next prime is 106506053. The reversal of 106506005 is 500605601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500605601 = 47 ⋅10651183.

It can be written as a sum of positive squares in 2 ways, for example, as 13557124 + 92948881 = 3682^2 + 9641^2 .

It is not a de Polignac number, because 106506005 - 2⁶ = 106505941 is a prime.

It is a super-2 number, since 2×106506005² = 22687058202120050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 10650596 + ... + 10650605.

It is an arithmetic number, because the mean of its divisors is an integer number (31951803).

Almost surely, 2^106506005 is an apocalyptic number.

It is an amenable number.

106506005 is a deficient number, since it is larger than the sum of its proper divisors (21301207).

106506005 is an equidigital number, since it uses as much as digits as its factorization.

106506005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21301206.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 106506005 is about 10320.1746593747. The cubic root of 106506005 is about 474.0142141168.

The spelling of 106506005 in words is "one hundred six million, five hundred six thousand, five".