2279191 has 4 divisors (see below), whose sum is σ = 2287584. Its totient is φ = 2270800.

The previous prime is 2279161. The next prime is 2279239. The reversal of 2279191 is 1919722.

2279191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2279191 - 2⁷ = 2279063 is a prime.

It is a super-2 number, since 2×2279191² = 10389423228962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3775 + ... + 4336.

It is an arithmetic number, because the mean of its divisors is an integer number (571896).

2^2279191 is an apocalyptic number.

2279191 is a deficient number, since it is larger than the sum of its proper divisors (8393).

2279191 is an equidigital number, since it uses as much as digits as its factorization.

2279191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8392.

The product of its digits is 2268, while the sum is 31.

The square root of 2279191 is about 1509.6989766175. The cubic root of 2279191 is about 131.6013184952.

The spelling of 2279191 in words is "two million, two hundred seventy-nine thousand, one hundred ninety-one".