105223427 has 4 divisors (see below), whose sum is σ = 105412896. Its totient is φ = 105033960.

The previous prime is 105223411. The next prime is 105223457. The reversal of 105223427 is 724322501.

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 105223427 - 2⁴ = 105223411 is a prime.

It is a super-2 number, since 2×105223427² = 22143939179248658, 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 = 105223396 and 105223405.

It is not an unprimeable number, because it can be changed into a prime (105223457) 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 3 ways as a sum of consecutive naturals, for example, 93899 + ... + 95012.

It is an arithmetic number, because the mean of its divisors is an integer number (26353224).

Almost surely, 2^105223427 is an apocalyptic number.

105223427 is a deficient number, since it is larger than the sum of its proper divisors (189469).

105223427 is an equidigital number, since it uses as much as digits as its factorization.

105223427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189468.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 105223427 is about 10257.8470938107. The cubic root of 105223427 is about 472.1037832567.

Adding to 105223427 its reverse (724322501), we get a palindrome (829545928).

The spelling of 105223427 in words is "one hundred five million, two hundred twenty-three thousand, four hundred twenty-seven".