105868605 has 16 divisors (see below), whose sum is σ = 179354304. Its totient is φ = 53141760.

The previous prime is 105868603. The next prime is 105868657. The reversal of 105868605 is 506868501.

It is not a de Polignac number, because 105868605 - 2¹ = 105868603 is a prime.

It is a super-2 number, since 2×105868605² = 22416323049292050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105868603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207331 + ... + 207840.

It is an arithmetic number, because the mean of its divisors is an integer number (11209644).

Almost surely, 2^105868605 is an apocalyptic number.

105868605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105868605 is a deficient number, since it is larger than the sum of its proper divisors (73485699).

105868605 is a wasteful number, since it uses less digits than its factorization.

105868605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415196.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 105868605 is about 10289.2470570008. The cubic root of 105868605 is about 473.0667201285.

It can be divided in two parts, 10586 and 8605, that added together give a palindrome (19191).

The spelling of 105868605 in words is "one hundred five million, eight hundred sixty-eight thousand, six hundred five".