105645223 has 8 divisors (see below), whose sum is σ = 107625600. Its totient is φ = 103671288.

The previous prime is 105645217. The next prime is 105645227. The reversal of 105645223 is 322546501.

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 105645223 - 2⁹ = 105644711 is a prime.

It is a super-2 number, since 2×105645223² = 22321826285439458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105645191 and 105645200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105645227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42390 + ... + 44812.

It is an arithmetic number, because the mean of its divisors is an integer number (13453200).

Almost surely, 2^105645223 is an apocalyptic number.

105645223 is a deficient number, since it is larger than the sum of its proper divisors (1980377).

105645223 is an equidigital number, since it uses as much as digits as its factorization.

105645223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 105645223 is about 10278.3862060150. The cubic root of 105645223 is about 472.7337633735.

The spelling of 105645223 in words is "one hundred five million, six hundred forty-five thousand, two hundred twenty-three".