105268643 has 4 divisors (see below), whose sum is σ = 105669168. Its totient is φ = 104868120.

The previous prime is 105268627. The next prime is 105268661. The reversal of 105268643 is 346862501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346862501 = 41 ⋅8460061.

It is a cyclic number.

It is not a de Polignac number, because 105268643 - 2⁴ = 105268627 is a prime.

It is a super-2 number, since 2×105268643² = 22162974398122898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105268613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199868 + ... + 200393.

It is an arithmetic number, because the mean of its divisors is an integer number (26417292).

Almost surely, 2^105268643 is an apocalyptic number.

105268643 is a deficient number, since it is larger than the sum of its proper divisors (400525).

105268643 is an equidigital number, since it uses as much as digits as its factorization.

105268643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400524.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 105268643 is about 10260.0508283341. The cubic root of 105268643 is about 472.1713968049.

The spelling of 105268643 in words is "one hundred five million, two hundred sixty-eight thousand, six hundred forty-three".