223450543 has 4 divisors (see below), whose sum is σ = 233165808. Its totient is φ = 213735280.

The previous prime is 223450541. The next prime is 223450559. The reversal of 223450543 is 345054322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345054322 = 2 ⋅172527161.

It is a cyclic number.

It is not a de Polignac number, because 223450543 - 2¹ = 223450541 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 (223450541) 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, 4857598 + ... + 4857643.

It is an arithmetic number, because the mean of its divisors is an integer number (58291452).

Almost surely, 2^223450543 is an apocalyptic number.

223450543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

223450543 is a deficient number, since it is larger than the sum of its proper divisors (9715265).

223450543 is an equidigital number, since it uses as much as digits as its factorization.

223450543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9715264.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 223450543 is about 14948.2622066915. The cubic root of 223450543 is about 606.8208178430.

The spelling of 223450543 in words is "two hundred twenty-three million, four hundred fifty thousand, five hundred forty-three".