2005191 has 6 divisors (see below), whose sum is σ = 2896400. Its totient is φ = 1336788.

The previous prime is 2005189. The next prime is 2005193. The reversal of 2005191 is 1915002.

It is an interprime number because it is at equal distance from previous prime (2005189) and next prime (2005193).

It is not a de Polignac number, because 2005191 - 2¹ = 2005189 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 (2005193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111391 + ... + 111408.

2^2005191 is an apocalyptic number.

2005191 is a deficient number, since it is larger than the sum of its proper divisors (891209).

2005191 is a wasteful number, since it uses less digits than its factorization.

2005191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222805 (or 222802 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 2005191 is about 1416.0476686892. The cubic root of 2005191 is about 126.1010149880.

The spelling of 2005191 in words is "two million, five thousand, one hundred ninety-one".