223453 has 4 divisors (see below), whose sum is σ = 226588. Its totient is φ = 220320.

The previous prime is 223441. The next prime is 223463. The reversal of 223453 is 354322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 178084 + 45369 = 422^2 + 213^2 .

It is a cyclic number.

It is not a de Polignac number, because 223453 - 2⁹ = 222941 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 223453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (56647).

2²²³⁴⁵³ is an apocalyptic number.

It is an amenable number.

223453 is a deficient number, since it is larger than the sum of its proper divisors (3135).

223453 is an equidigital number, since it uses as much as digits as its factorization.

223453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134.

The product of its digits is 720, while the sum is 19.

The square root of 223453 is about 472.7081552078. The cubic root of 223453 is about 60.6823041979.

Adding to 223453 its reverse (354322), we get a palindrome (577775).

It can be divided in two parts, 223 and 453, that added together give a palindrome (676).

The spelling of 223453 in words is "two hundred twenty-three thousand, four hundred fifty-three".