100560021 has 8 divisors (see below), whose sum is σ = 135310560. Its totient is φ = 66424752.

The previous prime is 100560017. The next prime is 100560037. The reversal of 100560021 is 120065001.

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

It is not a de Polignac number, because 100560021 - 2² = 100560017 is a prime.

It is a super-2 number, since 2×100560021² = 20224635647040882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100560091) 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 7 ways as a sum of consecutive naturals, for example, 153435 + ... + 154088.

It is an arithmetic number, because the mean of its divisors is an integer number (16913820).

Almost surely, 2^100560021 is an apocalyptic number.

It is an amenable number.

100560021 is a deficient number, since it is larger than the sum of its proper divisors (34750539).

100560021 is a wasteful number, since it uses less digits than its factorization.

100560021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307635.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 100560021 is about 10027.9619564496. The cubic root of 100560021 is about 465.0237333244.

The spelling of 100560021 in words is "one hundred million, five hundred sixty thousand, twenty-one".