243043053 has 16 divisors (see below), whose sum is σ = 354302976. Its totient is φ = 146971440.

The previous prime is 243043043. The next prime is 243043057. The reversal of 243043053 is 350340342.

It is not a de Polignac number, because 243043053 - 2⁸ = 243042797 is a prime.

It is a super-2 number, since 2×243043053² = 118139851223121618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243043057) 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 in 15 ways as a sum of consecutive naturals, for example, 7326 + ... + 23232.

It is an arithmetic number, because the mean of its divisors is an integer number (22143936).

Almost surely, 2^243043053 is an apocalyptic number.

It is an amenable number.

243043053 is a deficient number, since it is larger than the sum of its proper divisors (111259923).

243043053 is a wasteful number, since it uses less digits than its factorization.

243043053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16384.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 243043053 is about 15589.8381325785. The cubic root of 243043053 is about 624.0619981750.

Adding to 243043053 its reverse (350340342), we get a palindrome (593383395).

The spelling of 243043053 in words is "two hundred forty-three million, forty-three thousand, fifty-three".