2271563 has 8 divisors (see below), whose sum is σ = 2611200. Its totient is φ = 1935720.

The previous prime is 2271553. The next prime is 2271569. The reversal of 2271563 is 3651722.

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

It is a cyclic number.

It is not a de Polignac number, because 2271563 - 2⁶ = 2271499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2271569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488 + ... + 2186.

It is an arithmetic number, because the mean of its divisors is an integer number (326400).

2^2271563 is an apocalyptic number.

2271563 is a deficient number, since it is larger than the sum of its proper divisors (339637).

2271563 is a wasteful number, since it uses less digits than its factorization.

2271563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897.

The product of its digits is 2520, while the sum is 26.

The square root of 2271563 is about 1507.1705278435. The cubic root of 2271563 is about 131.4543399042.

The spelling of 2271563 in words is "two million, two hundred seventy-one thousand, five hundred sixty-three".