2041002191 has 4 divisors (see below), whose sum is σ = 2055685800. Its totient is φ = 2026318584.

The previous prime is 2041002179. The next prime is 2041002247. The reversal of 2041002191 is 1912001402.

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 2041002191 - 2²² = 2036807887 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 (2041002101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7341596 + ... + 7341873.

It is an arithmetic number, because the mean of its divisors is an integer number (513921450).

Almost surely, 2^2041002191 is an apocalyptic number.

2041002191 is a deficient number, since it is larger than the sum of its proper divisors (14683609).

2041002191 is a wasteful number, since it uses less digits than its factorization.

2041002191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14683608.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2041002191 is about 45177.4522411346. The cubic root of 2041002191 is about 1268.4727939896.

Adding to 2041002191 its reverse (1912001402), we get a palindrome (3953003593).

The spelling of 2041002191 in words is "two billion, forty-one million, two thousand, one hundred ninety-one".