2192191 has 4 divisors (see below), whose sum is σ = 2206312. Its totient is φ = 2178072.

The previous prime is 2192161. The next prime is 2192207. The reversal of 2192191 is 1912912.

2192191 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

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 2192191 - 2⁷ = 2192063 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 (2192101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6825 + ... + 7138.

It is an arithmetic number, because the mean of its divisors is an integer number (551578).

2^2192191 is an apocalyptic number.

2192191 is a deficient number, since it is larger than the sum of its proper divisors (14121).

2192191 is a wasteful number, since it uses less digits than its factorization.

2192191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14120.

The product of its digits is 324, while the sum is 25.

The square root of 2192191 is about 1480.6049439334. The cubic root of 2192191 is about 129.9050786377.

The spelling of 2192191 in words is "two million, one hundred ninety-two thousand, one hundred ninety-one".