109563 has 8 divisors (see below), whose sum is σ = 148800. Its totient is φ = 71688.

The previous prime is 109547. The next prime is 109567. The reversal of 109563 is 365901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109563 - 2⁴ = 109547 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (109567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133 + ... + 486.

It is an arithmetic number, because the mean of its divisors is an integer number (18600).

2¹⁰⁹⁵⁶³ is an apocalyptic number.

109563 is a deficient number, since it is larger than the sum of its proper divisors (39237).

109563 is an equidigital number, since it uses as much as digits as its factorization.

109563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 109563 is about 331.0030211342. The cubic root of 109563 is about 47.8506643470.

The spelling of 109563 in words is "one hundred nine thousand, five hundred sixty-three".