200191101 has 16 divisors (see below), whose sum is σ = 297960960. Its totient is φ = 118505520.

The previous prime is 200191093. The next prime is 200191169. The reversal of 200191101 is 101191002.

It is not a de Polignac number, because 200191101 - 2³ = 200191093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200190101) 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 15 ways as a sum of consecutive naturals, for example, 69121 + ... + 71958.

It is an arithmetic number, because the mean of its divisors is an integer number (18622560).

Almost surely, 2^200191101 is an apocalyptic number.

It is an amenable number.

200191101 is a deficient number, since it is larger than the sum of its proper divisors (97769859).

200191101 is a wasteful number, since it uses less digits than its factorization.

200191101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141136.

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 200191101 is about 14148.8904511979. The cubic root of 200191101 is about 584.9897492542.

Subtracting from 200191101 its reverse (101191002), we obtain a palindrome (99000099).

The spelling of 200191101 in words is "two hundred million, one hundred ninety-one thousand, one hundred one".