243423053 has 6 divisors (see below), whose sum is σ = 254467374. Its totient is φ = 232838936.

The previous prime is 243423049. The next prime is 243423073. The reversal of 243423053 is 350324342.

243423053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 209294089 + 34128964 = 14467^2 + 5842^2 .

It is not a de Polignac number, because 243423053 - 2² = 243423049 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 (243423073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229550 + ... + 230607.

It is an arithmetic number, because the mean of its divisors is an integer number (42411229).

Almost surely, 2^243423053 is an apocalyptic number.

243423053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

243423053 is a deficient number, since it is larger than the sum of its proper divisors (11044321).

243423053 is an equidigital number, since it uses as much as digits as its factorization.

243423053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460203 (or 460180 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 243423053 is about 15602.0207986017. The cubic root of 243423053 is about 624.3870709987.

Adding to 243423053 its reverse (350324342), we get a palindrome (593747395).

The spelling of 243423053 in words is "two hundred forty-three million, four hundred twenty-three thousand, fifty-three".