105111563 has 4 divisors (see below), whose sum is σ = 105210960. Its totient is φ = 105012168.

The previous prime is 105111533. The next prime is 105111571. The reversal of 105111563 is 365111501.

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 105111563 - 2¹² = 105107467 is a prime.

It is a super-2 number, since 2×105111563² = 22096881352605938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105111533) 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, 48095 + ... + 50232.

It is an arithmetic number, because the mean of its divisors is an integer number (26302740).

Almost surely, 2^105111563 is an apocalyptic number.

105111563 is a deficient number, since it is larger than the sum of its proper divisors (99397).

105111563 is an equidigital number, since it uses as much as digits as its factorization.

105111563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99396.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 105111563 is about 10252.3930377254. The cubic root of 105111563 is about 471.9364246341.

The spelling of 105111563 in words is "one hundred five million, one hundred eleven thousand, five hundred sixty-three".