105561705 has 16 divisors (see below), whose sum is σ = 170642304. Its totient is φ = 55718400.

The previous prime is 105561683. The next prime is 105561707. The reversal of 105561705 is 507165501.

It is not a de Polignac number, because 105561705 - 2¹⁰ = 105560681 is a prime.

It is a super-2 number, since 2×105561705² = 22286547125014050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105561707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34821 + ... + 37730.

It is an arithmetic number, because the mean of its divisors is an integer number (10665144).

Almost surely, 2^105561705 is an apocalyptic number.

105561705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105561705 is a deficient number, since it is larger than the sum of its proper divisors (65080599).

105561705 is an equidigital number, since it uses as much as digits as its factorization.

105561705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72656.

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 105561705 is about 10274.3226054081. The cubic root of 105561705 is about 472.6091570543.

The spelling of 105561705 in words is "one hundred five million, five hundred sixty-one thousand, seven hundred five".