2041187191 has 4 divisors (see below), whose sum is σ = 2043152800. Its totient is φ = 2039221584.

The previous prime is 2041187189. The next prime is 2041187201. The reversal of 2041187191 is 1917811402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2041187191 - 2¹ = 2041187189 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 (2041187101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981246 + ... + 983323.

It is an arithmetic number, because the mean of its divisors is an integer number (510788200).

Almost surely, 2^2041187191 is an apocalyptic number.

2041187191 is a deficient number, since it is larger than the sum of its proper divisors (1965609).

2041187191 is a wasteful number, since it uses less digits than its factorization.

2041187191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965608.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 2041187191 is about 45179.4996762912. The cubic root of 2041187191 is about 1268.5111183608.

Adding to 2041187191 its reverse (1917811402), we get a palindrome (3958998593).

The spelling of 2041187191 in words is "two billion, forty-one million, one hundred eighty-seven thousand, one hundred ninety-one".