100568 has 16 divisors (see below), whose sum is σ = 203280. Its totient is φ = 46368.

The previous prime is 100559. The next prime is 100591. The reversal of 100568 is 865001.

It is a super-2 number, since 2×100568² = 20227845248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380 + ... + 587.

It is an arithmetic number, because the mean of its divisors is an integer number (12705).

2¹⁰⁰⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

100568 is an abundant number, since it is smaller than the sum of its proper divisors (102712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100568 is a wasteful number, since it uses less digits than its factorization.

100568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 100568 is about 317.1245811980. The cubic root of 100568 is about 46.5036032202.

Adding to 100568 its reverse (865001), we get a palindrome (965569).

The spelling of 100568 in words is "one hundred thousand, five hundred sixty-eight".