105444223 has 4 divisors (see below), whose sum is σ = 106779040. Its totient is φ = 104109408.

The previous prime is 105444221. The next prime is 105444233. The reversal of 105444223 is 322444501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 105444223 - 2¹ = 105444221 is a prime.

It is a super-2 number, since 2×105444223² = 22236968328147458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105444221) 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, 667290 + ... + 667447.

It is an arithmetic number, because the mean of its divisors is an integer number (26694760).

Almost surely, 2^105444223 is an apocalyptic number.

105444223 is a deficient number, since it is larger than the sum of its proper divisors (1334817).

105444223 is an equidigital number, since it uses as much as digits as its factorization.

105444223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334816.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 105444223 is about 10268.6037512410. The cubic root of 105444223 is about 472.4337661795.

Adding to 105444223 its reverse (322444501), we get a palindrome (427888724).

The spelling of 105444223 in words is "one hundred five million, four hundred forty-four thousand, two hundred twenty-three".