2000000191 has 8 divisors (see below), whose sum is σ = 2303713280. Its totient is φ = 1700786808.

The previous prime is 2000000153. The next prime is 2000000203. The reversal of 2000000191 is 1910000002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2000000191 - 2⁷ = 2000000063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000000141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123971 + ... + 1125748.

It is an arithmetic number, because the mean of its divisors is an integer number (287964160).

Almost surely, 2^2000000191 is an apocalyptic number.

2000000191 is a deficient number, since it is larger than the sum of its proper divisors (303713089).

2000000191 is a wasteful number, since it uses less digits than its factorization.

2000000191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249853.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 2000000191 is about 44721.3616854407. The cubic root of 2000000191 is about 1259.9210900024.

Adding to 2000000191 its reverse (1910000002), we get a palindrome (3910000193).

The spelling of 2000000191 in words is "two billion, one hundred ninety-one", and thus it is an aban number.