2081127191 has 8 divisors (see below), whose sum is σ = 2444960784. Its totient is φ = 1746400320.

The previous prime is 2081127161. The next prime is 2081127227. The reversal of 2081127191 is 1917211802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2081127191 - 2⁶ = 2081127127 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 (2081127121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7276526 + ... + 7276811.

It is an arithmetic number, because the mean of its divisors is an integer number (305620098).

Almost surely, 2^2081127191 is an apocalyptic number.

2081127191 is a deficient number, since it is larger than the sum of its proper divisors (363833593).

2081127191 is a wasteful number, since it uses less digits than its factorization.

2081127191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14553361.

The product of its (nonzero) digits is 2016, while the sum is 32.

The square root of 2081127191 is about 45619.3729790316. The cubic root of 2081127191 is about 1276.7314047149.

Adding to 2081127191 its reverse (1917211802), we get a palindrome (3998338993).

The spelling of 2081127191 in words is "two billion, eighty-one million, one hundred twenty-seven thousand, one hundred ninety-one".