100504205 has 12 divisors (see below), whose sum is σ = 127289052. Its totient is φ = 76170240.

The previous prime is 100504147. The next prime is 100504223. The reversal of 100504205 is 502405001.

It can be written as a sum of positive squares in 2 ways, for example, as 40998409 + 59505796 = 6403^2 + 7714^2 .

It is not a de Polignac number, because 100504205 - 2⁶ = 100504141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26036 + ... + 29645.

It is an arithmetic number, because the mean of its divisors is an integer number (10607421).

Almost surely, 2^100504205 is an apocalyptic number.

It is an amenable number.

100504205 is a deficient number, since it is larger than the sum of its proper divisors (26784847).

100504205 is an equidigital number, since it uses as much as digits as its factorization.

100504205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55724 (or 55705 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 100504205 is about 10025.1785520259. The cubic root of 100504205 is about 464.9376800129.

Adding to 100504205 its reverse (502405001), we get a palindrome (602909206).

The spelling of 100504205 in words is "one hundred million, five hundred four thousand, two hundred five".