243153223 has 2 divisors, whose sum is σ = 243153224. Its totient is φ = 243153222.

The previous prime is 243153199. The next prime is 243153257. The reversal of 243153223 is 322351342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243153223 - 2¹³ = 243145031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243153293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121576611 + 121576612.

It is an arithmetic number, because the mean of its divisors is an integer number (121576612).

Almost surely, 2^243153223 is an apocalyptic number.

243153223 is a deficient number, since it is larger than the sum of its proper divisors (1).

243153223 is an equidigital number, since it uses as much as digits as its factorization.

243153223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 25.

The square root of 243153223 is about 15593.3711236538. The cubic root of 243153223 is about 624.1562784869.

The spelling of 243153223 in words is "two hundred forty-three million, one hundred fifty-three thousand, two hundred twenty-three".