2072191 has 8 divisors (see below), whose sum is σ = 2272464. Its totient is φ = 1873920.

The previous prime is 2072179. The next prime is 2072201. The reversal of 2072191 is 1912702.

2072191 is nontrivially palindromic in base 8.

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 2072191 - 2¹¹ = 2070143 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2461 + ... + 3193.

It is an arithmetic number, because the mean of its divisors is an integer number (284058).

2^2072191 is an apocalyptic number.

2072191 is a deficient number, since it is larger than the sum of its proper divisors (200273).

2072191 is a wasteful number, since it uses less digits than its factorization.

2072191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 2072191 is about 1439.5106807523. The cubic root of 2072191 is about 127.4901389272.

Adding to 2072191 its reverse (1912702), we get a palindrome (3984893).

The spelling of 2072191 in words is "two million, seventy-two thousand, one hundred ninety-one".