507243 has 16 divisors (see below), whose sum is σ = 777600. Its totient is φ = 290880.

The previous prime is 507217. The next prime is 507289. The reversal of 507243 is 342705.

It is a happy number.

It is not a de Polignac number, because 507243 - 2⁹ = 506731 is a prime.

It is a super-2 number, since 2×507243² = 514590922098, which contains 22 as substring.

507243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (507743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (48600).

2⁵⁰⁷²⁴³ is an apocalyptic number.

507243 is a deficient number, since it is larger than the sum of its proper divisors (270357).

507243 is a wasteful number, since it uses less digits than its factorization.

507243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 507243 is about 712.2099409584. The cubic root of 507243 is about 79.7514682827.

Adding to 507243 its reverse (342705), we get a palindrome (849948).

It can be divided in two parts, 5072 and 43, that added together give a palindrome (5115).

The spelling of 507243 in words is "five hundred seven thousand, two hundred forty-three".