105244643 has 4 divisors (see below), whose sum is σ = 120279600. Its totient is φ = 90209688.

The previous prime is 105244621. The next prime is 105244673. The reversal of 105244643 is 346442501.

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 105244643 - 2⁸ = 105244387 is a prime.

It is a super-2 number, since 2×105244643² = 22152869760394898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105244673) 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, 7517468 + ... + 7517481.

It is an arithmetic number, because the mean of its divisors is an integer number (30069900).

Almost surely, 2^105244643 is an apocalyptic number.

105244643 is a deficient number, since it is larger than the sum of its proper divisors (15034957).

105244643 is an equidigital number, since it uses as much as digits as its factorization.

105244643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15034956.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 105244643 is about 10258.8811768146. The cubic root of 105244643 is about 472.1355109212.

The spelling of 105244643 in words is "one hundred five million, two hundred forty-four thousand, six hundred forty-three".