200171101 has 4 divisors (see below), whose sum is σ = 215568892. Its totient is φ = 184773312.

The previous prime is 200171071. The next prime is 200171113. The reversal of 200171101 is 101171002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138532900 + 61638201 = 11770^2 + 7851^2 .

It is a cyclic number.

It is not a de Polignac number, because 200171101 - 2⁹ = 200170589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 15397777 = 200171101 / (2 + 0 + 0 + 1 + 7 + 1 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200171131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7698876 + ... + 7698901.

It is an arithmetic number, because the mean of its divisors is an integer number (53892223).

Almost surely, 2^200171101 is an apocalyptic number.

It is an amenable number.

200171101 is a deficient number, since it is larger than the sum of its proper divisors (15397791).

200171101 is a wasteful number, since it uses less digits than its factorization.

200171101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15397790.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 200171101 is about 14148.1836643436. The cubic root of 200171101 is about 584.9702675614.

Subtracting from 200171101 its reverse (101171002), we obtain a palindrome (99000099).

The spelling of 200171101 in words is "two hundred million, one hundred seventy-one thousand, one hundred one".