2271057 has 4 divisors (see below), whose sum is σ = 3028080. Its totient is φ = 1514036.

The previous prime is 2271053. The next prime is 2271067. The reversal of 2271057 is 7501722.

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 2271057 - 2² = 2271053 is a prime.

It is a D-number.

2271057 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2271053) 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, 378507 + ... + 378512.

It is an arithmetic number, because the mean of its divisors is an integer number (757020).

2^2271057 is an apocalyptic number.

It is an amenable number.

2271057 is a deficient number, since it is larger than the sum of its proper divisors (757023).

2271057 is an equidigital number, since it uses as much as digits as its factorization.

2271057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757022.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 2271057 is about 1507.0026542777. The cubic root of 2271057 is about 131.4445785144. Note that the first 3 decimals are identical.

Adding to 2271057 its reverse (7501722), we get a palindrome (9772779).

The spelling of 2271057 in words is "two million, two hundred seventy-one thousand, fifty-seven".