2271193 has 4 divisors (see below), whose sum is σ = 2349540. Its totient is φ = 2192848.

The previous prime is 2271163. The next prime is 2271221. The reversal of 2271193 is 3911722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1172889 + 1098304 = 1083^2 + 1048^2 .

It is a cyclic number.

It is not a de Polignac number, because 2271193 - 2⁵ = 2271161 is a prime.

It is a Duffinian number.

2271193 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2271133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39130 + ... + 39187.

It is an arithmetic number, because the mean of its divisors is an integer number (587385).

2^2271193 is an apocalyptic number.

It is an amenable number.

2271193 is a deficient number, since it is larger than the sum of its proper divisors (78347).

2271193 is an equidigital number, since it uses as much as digits as its factorization.

2271193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78346.

The product of its digits is 756, while the sum is 25.

The square root of 2271193 is about 1507.0477762832. The cubic root of 2271193 is about 131.4472022715.

The spelling of 2271193 in words is "two million, two hundred seventy-one thousand, one hundred ninety-three".