106805281 has 8 divisors (see below), whose sum is σ = 118490400. Its totient is φ = 95449440.

The previous prime is 106805243. The next prime is 106805297. The reversal of 106805281 is 182508601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106805281 - 2⁹ = 106804769 is a prime.

It is a super-2 number, since 2×106805281² = 22814736098977922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106805201) 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 in 7 ways as a sum of consecutive naturals, for example, 81636 + ... + 82933.

It is an arithmetic number, because the mean of its divisors is an integer number (14811300).

Almost surely, 2^106805281 is an apocalyptic number.

106805281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

106805281 is a deficient number, since it is larger than the sum of its proper divisors (11685119).

106805281 is a wasteful number, since it uses less digits than its factorization.

106805281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164639.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 106805281 is about 10334.6640487246. The cubic root of 106805281 is about 474.4577835069.

The spelling of 106805281 in words is "one hundred six million, eight hundred five thousand, two hundred eighty-one".