4581223 has 4 divisors (see below), whose sum is σ = 4822360. Its totient is φ = 4340088.

The previous prime is 4581221. The next prime is 4581233. The reversal of 4581223 is 3221854.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3221854 = 2 ⋅1610927.

It is a cyclic number.

It is not a de Polignac number, because 4581223 - 2¹ = 4581221 is a prime.

It is a d-powerful number, because it can be written as 4⁸ + 5³ + 8² + 1 + 2¹⁸ + 2²² + 3¹⁰ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4581221) 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, 120540 + ... + 120577.

It is an arithmetic number, because the mean of its divisors is an integer number (1205590).

Almost surely, 2^4581223 is an apocalyptic number.

4581223 is a deficient number, since it is larger than the sum of its proper divisors (241137).

4581223 is a wasteful number, since it uses less digits than its factorization.

4581223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241136.

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

The square root of 4581223 is about 2140.3791720160. The cubic root of 4581223 is about 166.0837507421.

It can be divided in two parts, 458 and 1223, that added together give a square (1681 = 41²).

The spelling of 4581223 in words is "four million, five hundred eighty-one thousand, two hundred twenty-three".