100045205 has 16 divisors (see below), whose sum is σ = 130932480. Its totient is φ = 72940608.

The previous prime is 100045181. The next prime is 100045213. The reversal of 100045205 is 502540001.

It is not a de Polignac number, because 100045205 - 2²⁰ = 98996629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4607 + ... + 14876.

It is an arithmetic number, because the mean of its divisors is an integer number (8183280).

Almost surely, 2^100045205 is an apocalyptic number.

It is an amenable number.

100045205 is a deficient number, since it is larger than the sum of its proper divisors (30887275).

100045205 is a wasteful number, since it uses less digits than its factorization.

100045205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19580.

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

The square root of 100045205 is about 10002.2599946212. The cubic root of 100045205 is about 464.2288138327.

Adding to 100045205 its reverse (502540001), we get a palindrome (602585206).

The spelling of 100045205 in words is "one hundred million, forty-five thousand, two hundred five".