605243 has 4 divisors (see below), whose sum is σ = 613608. Its totient is φ = 596880.

The previous prime is 605239. The next prime is 605249. The reversal of 605243 is 342506.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342506 = 2 ⋅171253.

It is a cyclic number.

It is not a de Polignac number, because 605243 - 2² = 605239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4073 + ... + 4218.

It is an arithmetic number, because the mean of its divisors is an integer number (153402).

2⁶⁰⁵²⁴³ is an apocalyptic number.

605243 is a deficient number, since it is larger than the sum of its proper divisors (8365).

605243 is an equidigital number, since it uses as much as digits as its factorization.

605243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8364.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 605243 is about 777.9736499394. The cubic root of 605243 is about 84.5882275850.

Adding to 605243 its reverse (342506), we get a palindrome (947749).

It can be divided in two parts, 605 and 243, that added together give a palindrome (848).

The spelling of 605243 in words is "six hundred five thousand, two hundred forty-three".