100775563 has 8 divisors (see below), whose sum is σ = 121233920. Its totient is φ = 81832680.

The previous prime is 100775537. The next prime is 100775579. The reversal of 100775563 is 365577001.

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

It is a cyclic number.

It is not a de Polignac number, because 100775563 - 2¹⁷ = 100644491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100775503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378723 + ... + 378988.

It is an arithmetic number, because the mean of its divisors is an integer number (15154240).

Almost surely, 2^100775563 is an apocalyptic number.

100775563 is a deficient number, since it is larger than the sum of its proper divisors (20458357).

100775563 is an equidigital number, since it uses as much as digits as its factorization.

100775563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757737.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 100775563 is about 10038.7032529107. The cubic root of 100775563 is about 465.3557427274.

The spelling of 100775563 in words is "one hundred million, seven hundred seventy-five thousand, five hundred sixty-three".