2263543 has 4 divisors (see below), whose sum is σ = 2266648. Its totient is φ = 2260440.

The previous prime is 2263531. The next prime is 2263553. The reversal of 2263543 is 3453622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3453622 = 2 ⋅1726811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2263543 is a prime.

It is a d-powerful number, because it can be written as 2 + 2¹⁷ + 6 + 3⁷ + 5⁹ + 4 + 3¹¹ .

It is a Duffinian number.

2263543 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263553) 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, 205 + ... + 2137.

It is an arithmetic number, because the mean of its divisors is an integer number (566662).

2^2263543 is an apocalyptic number.

2263543 is a deficient number, since it is larger than the sum of its proper divisors (3105).

2263543 is a wasteful number, since it uses less digits than its factorization.

2263543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104.

The product of its digits is 4320, while the sum is 25.

The square root of 2263543 is about 1504.5075606324. The cubic root of 2263543 is about 131.2994528688.

The spelling of 2263543 in words is "two million, two hundred sixty-three thousand, five hundred forty-three".