100622563 has 4 divisors (see below), whose sum is σ = 101618928. Its totient is φ = 99626200.

The previous prime is 100622513. The next prime is 100622579. The reversal of 100622563 is 365226001.

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 100622563 - 2²¹ = 98525411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100622513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498031 + ... + 498232.

It is an arithmetic number, because the mean of its divisors is an integer number (25404732).

Almost surely, 2^100622563 is an apocalyptic number.

100622563 is a deficient number, since it is larger than the sum of its proper divisors (996365).

100622563 is an equidigital number, since it uses as much as digits as its factorization.

100622563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996364.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 100622563 is about 10031.0798521395. The cubic root of 100622563 is about 465.1201185040.

Adding to 100622563 its reverse (365226001), we get a palindrome (465848564).

The spelling of 100622563 in words is "one hundred million, six hundred twenty-two thousand, five hundred sixty-three".