2271568049 has 4 divisors (see below), whose sum is σ = 2272428864. Its totient is φ = 2270707236.

The previous prime is 2271568037. The next prime is 2271568051. The reversal of 2271568049 is 9408651722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2271568049 - 2²⁴ = 2254790833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2271568099) 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, 426437 + ... + 431730.

It is an arithmetic number, because the mean of its divisors is an integer number (568107216).

Almost surely, 2^2271568049 is an apocalyptic number.

It is an amenable number.

2271568049 is a deficient number, since it is larger than the sum of its proper divisors (860815).

2271568049 is an equidigital number, since it uses as much as digits as its factorization.

2271568049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860814.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2271568049 is about 47660.9698705345. The cubic root of 2271568049 is about 1314.5443729857.

The spelling of 2271568049 in words is "two billion, two hundred seventy-one million, five hundred sixty-eight thousand, forty-nine".