243053 has 4 divisors (see below), whose sum is σ = 249660. Its totient is φ = 236448.

The previous prime is 243031. The next prime is 243073. The reversal of 243053 is 350342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 218089 + 24964 = 467^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 243053 - 2⁶ = 242989 is a prime.

It is a d-powerful number, because it can be written as 2 + 4⁸ + 0 + 3⁵ + 5³ + 3¹¹ .

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243073) 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, 3248 + ... + 3321.

It is an arithmetic number, because the mean of its divisors is an integer number (62415).

2²⁴³⁰⁵³ is an apocalyptic number.

It is an amenable number.

243053 is a deficient number, since it is larger than the sum of its proper divisors (6607).

243053 is an equidigital number, since it uses as much as digits as its factorization.

243053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6606.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 243053 is about 493.0040567784. The cubic root of 243053 is about 62.4070511701.

Adding to 243053 its reverse (350342), we get a palindrome (593395).

The spelling of 243053 in words is "two hundred forty-three thousand, fifty-three".