100605565 has 8 divisors (see below), whose sum is σ = 125975808. Its totient is φ = 76985040.

The previous prime is 100605563. The next prime is 100605577. The reversal of 100605565 is 565506001.

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

It is not a de Polignac number, because 100605565 - 2¹ = 100605563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100605563) 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, 437301 + ... + 437530.

It is an arithmetic number, because the mean of its divisors is an integer number (15746976).

Almost surely, 2^100605565 is an apocalyptic number.

It is an amenable number.

100605565 is a deficient number, since it is larger than the sum of its proper divisors (25370243).

100605565 is an equidigital number, since it uses as much as digits as its factorization.

100605565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874859.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 100605565 is about 10030.2325496471. The cubic root of 100605565 is about 465.0939263765.

It can be divided in two parts, 10060 and 5565, that added together give a 6-th power (15625 = 5⁶).

The spelling of 100605565 in words is "one hundred million, six hundred five thousand, five hundred sixty-five".