2191195 has 8 divisors (see below), whose sum is σ = 2656080. Its totient is φ = 1735200.

The previous prime is 2191193. The next prime is 2191199. The reversal of 2191195 is 5911912.

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

It is not a de Polignac number, because 2191195 - 2¹ = 2191193 is a prime.

2191195 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2191193) 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 7 ways as a sum of consecutive naturals, for example, 1665 + ... + 2674.

It is an arithmetic number, because the mean of its divisors is an integer number (332010).

2^2191195 is an apocalyptic number.

2191195 is a deficient number, since it is larger than the sum of its proper divisors (464885).

2191195 is a wasteful number, since it uses less digits than its factorization.

2191195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445.

The product of its digits is 810, while the sum is 28.

The square root of 2191195 is about 1480.2685567153. The cubic root of 2191195 is about 129.8854019674.

The spelling of 2191195 in words is "two million, one hundred ninety-one thousand, one hundred ninety-five".