105812755 has 4 divisors (see below), whose sum is σ = 126975312. Its totient is φ = 84650200.

The previous prime is 105812753. The next prime is 105812771. The reversal of 105812755 is 557218501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557218501 = 7 ⋅79602643.

It is not a de Polignac number, because 105812755 - 2¹ = 105812753 is a prime.

It is a super-2 number, since 2×105812755² = 22392678241380050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105812755.

It is not an unprimeable number, because it can be changed into a prime (105812753) 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 3 ways as a sum of consecutive naturals, for example, 10581271 + ... + 10581280.

It is an arithmetic number, because the mean of its divisors is an integer number (31743828).

Almost surely, 2^105812755 is an apocalyptic number.

105812755 is a deficient number, since it is larger than the sum of its proper divisors (21162557).

105812755 is an equidigital number, since it uses as much as digits as its factorization.

105812755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21162556.

The product of its (nonzero) digits is 14000, while the sum is 34.

The square root of 105812755 is about 10286.5327005751. The cubic root of 105812755 is about 472.9835181768.

The spelling of 105812755 in words is "one hundred five million, eight hundred twelve thousand, seven hundred fifty-five".