2020000191 has 16 divisors (see below), whose sum is σ = 3039500160. Its totient is φ = 1182026720.

The previous prime is 2020000187. The next prime is 2020000201. The reversal of 2020000191 is 1910000202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2020000191 - 2² = 2020000187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020000191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020000111) 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, 1054425 + ... + 1056338.

It is an arithmetic number, because the mean of its divisors is an integer number (189968760).

Almost surely, 2^2020000191 is an apocalyptic number.

2020000191 is a deficient number, since it is larger than the sum of its proper divisors (1019499969).

2020000191 is a wasteful number, since it uses less digits than its factorization.

2020000191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110806.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2020000191 is about 44944.4122333355. The cubic root of 2020000191 is about 1264.1069047056.

Adding to 2020000191 its reverse (1910000202), we get a palindrome (3930000393).

The spelling of 2020000191 in words is "two billion, twenty million, one hundred ninety-one", and thus it is an aban number.