223305453 has 12 divisors (see below), whose sum is σ = 368631328. Its totient is φ = 127603080.

The previous prime is 223305451. The next prime is 223305463. The reversal of 223305453 is 354503322.

It is not a de Polignac number, because 223305453 - 2¹ = 223305451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223305451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1772203 + ... + 1772328.

Almost surely, 2^223305453 is an apocalyptic number.

It is an amenable number.

223305453 is a deficient number, since it is larger than the sum of its proper divisors (145325875).

223305453 is a wasteful number, since it uses less digits than its factorization.

223305453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544544 (or 3544541 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 223305453 is about 14943.4083461572. The cubic root of 223305453 is about 606.6894499286.

Adding to 223305453 its reverse (354503322), we get a palindrome (577808775).

The spelling of 223305453 in words is "two hundred twenty-three million, three hundred five thousand, four hundred fifty-three".