105569243 has 4 divisors (see below), whose sum is σ = 113689968. Its totient is φ = 97448520.

The previous prime is 105569221. The next prime is 105569273. The reversal of 105569243 is 342965501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 105569243 - 2⁶ = 105569179 is a prime.

It is a super-2 number, since 2×105569243² = 22289730135186098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105569213) 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 3 ways as a sum of consecutive naturals, for example, 4060343 + ... + 4060368.

It is an arithmetic number, because the mean of its divisors is an integer number (28422492).

Almost surely, 2^105569243 is an apocalyptic number.

105569243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

105569243 is a deficient number, since it is larger than the sum of its proper divisors (8120725).

105569243 is an equidigital number, since it uses as much as digits as its factorization.

105569243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8120724.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 105569243 is about 10274.6894356959. The cubic root of 105569243 is about 472.6204062190.

The spelling of 105569243 in words is "one hundred five million, five hundred sixty-nine thousand, two hundred forty-three".