100505604 has 12 divisors (see below), whose sum is σ = 234513104. Its totient is φ = 33501864.

The previous prime is 100505593. The next prime is 100505609. The reversal of 100505604 is 406505001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (100505609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4187722 + ... + 4187745.

Almost surely, 2^100505604 is an apocalyptic number.

It is an amenable number.

100505604 is an abundant number, since it is smaller than the sum of its proper divisors (134007500).

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

100505604 is a wasteful number, since it uses less digits than its factorization.

100505604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375474 (or 8375472 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 100505604 is about 10025.2483261015. The cubic root of 100505604 is about 464.9398372851.

The spelling of 100505604 in words is "one hundred million, five hundred five thousand, six hundred four".