200100505 has 16 divisors (see below), whose sum is σ = 270402048. Its totient is φ = 140832000.

The previous prime is 200100503. The next prime is 200100517. The reversal of 200100505 is 505001002.

It is not a de Polignac number, because 200100505 - 2¹ = 200100503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200100503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56976 + ... + 60385.

It is an arithmetic number, because the mean of its divisors is an integer number (16900128).

Almost surely, 2^200100505 is an apocalyptic number.

It is an amenable number.

200100505 is a deficient number, since it is larger than the sum of its proper divisors (70301543).

200100505 is a wasteful number, since it uses less digits than its factorization.

200100505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117408.

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 200100505 is about 14145.6885657786. The cubic root of 200100505 is about 584.9014907057.

Adding to 200100505 its reverse (505001002), we get a palindrome (705101507).

The spelling of 200100505 in words is "two hundred million, one hundred thousand, five hundred five".