2100563 has 2 divisors, whose sum is σ = 2100564. Its totient is φ = 2100562.

The previous prime is 2100559. The next prime is 2100569. The reversal of 2100563 is 3650012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100563 - 2² = 2100559 is a prime.

It is not a weakly prime, because it can be changed into another prime (2100569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050281 + 1050282.

It is an arithmetic number, because the mean of its divisors is an integer number (1050282).

2^2100563 is an apocalyptic number.

2100563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100563 is an equidigital number, since it uses as much as digits as its factorization.

2100563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2100563 is about 1449.3319150560. The cubic root of 2100563 is about 128.0693593821.

Adding to 2100563 its reverse (3650012), we get a palindrome (5750575).

The spelling of 2100563 in words is "two million, one hundred thousand, five hundred sixty-three".