2281543 has 8 divisors (see below), whose sum is σ = 2503296. Its totient is φ = 2062200.

The previous prime is 2281529. The next prime is 2281567. The reversal of 2281543 is 3451822.

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 2281543 - 2¹³ = 2273351 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 2¹⁷ + 8 + 1 + 5⁹ + 4⁸ + 3⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281243) 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, 1830 + ... + 2812.

It is an arithmetic number, because the mean of its divisors is an integer number (312912).

2^2281543 is an apocalyptic number.

2281543 is a deficient number, since it is larger than the sum of its proper divisors (221753).

2281543 is a wasteful number, since it uses less digits than its factorization.

2281543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205.

The product of its digits is 1920, while the sum is 25.

The square root of 2281543 is about 1510.4777389952. The cubic root of 2281543 is about 131.6465713781.

It can be divided in two parts, 228 and 1543, that added together give a palindrome (1771).

The spelling of 2281543 in words is "two million, two hundred eighty-one thousand, five hundred forty-three".