2287543 has 4 divisors (see below), whose sum is σ = 2407960. Its totient is φ = 2167128.

The previous prime is 2287531. The next prime is 2287547. The reversal of 2287543 is 3457822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3457822 = 2 ⋅1728911.

It is a cyclic number.

It is not a de Polignac number, because 2287543 - 2⁹ = 2287031 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁹ + 2²¹ + 8 + 7⁶ + 5³ + 4⁸ + 3⁸ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287547) 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, 60180 + ... + 60217.

It is an arithmetic number, because the mean of its divisors is an integer number (601990).

2^2287543 is an apocalyptic number.

2287543 is a deficient number, since it is larger than the sum of its proper divisors (120417).

2287543 is a wasteful number, since it uses less digits than its factorization.

2287543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120416.

The product of its digits is 13440, while the sum is 31.

The square root of 2287543 is about 1512.4625615201. The cubic root of 2287543 is about 131.7618717151.

The spelling of 2287543 in words is "two million, two hundred eighty-seven thousand, five hundred forty-three".