2045191 has 2 divisors, whose sum is σ = 2045192. Its totient is φ = 2045190.

The previous prime is 2045189. The next prime is 2045213. The reversal of 2045191 is 1915402.

It is an a-pointer prime, because the next prime (2045213) can be obtained adding 2045191 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2045191 - 2¹ = 2045189 is a prime.

Together with 2045189, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022595 + 1022596.

It is an arithmetic number, because the mean of its divisors is an integer number (1022596).

2^2045191 is an apocalyptic number.

2045191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045191 is an equidigital number, since it uses as much as digits as its factorization.

2045191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2045191 is about 1430.1017446322. The cubic root of 2045191 is about 126.9339975723.

The spelling of 2045191 in words is "two million, forty-five thousand, one hundred ninety-one".