323140543 has 12 divisors (see below), whose sum is σ = 373884280. Its totient is φ = 278300880.

The previous prime is 323140541. The next prime is 323140549. The reversal of 323140543 is 345041323.

It is not a de Polignac number, because 323140543 - 2¹ = 323140541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323140541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67980 + ... + 72577.

Almost surely, 2^323140543 is an apocalyptic number.

323140543 is a deficient number, since it is larger than the sum of its proper divisors (50743737).

323140543 is a wasteful number, since it uses less digits than its factorization.

323140543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140598 (or 140587 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 323140543 is about 17976.1103412279. The cubic root of 323140543 is about 686.2207036353.

Adding to 323140543 its reverse (345041323), we get a palindrome (668181866).

The spelling of 323140543 in words is "three hundred twenty-three million, one hundred forty thousand, five hundred forty-three".