343040543 has 2 divisors, whose sum is σ = 343040544. Its totient is φ = 343040542.

The previous prime is 343040521. The next prime is 343040557. The reversal of 343040543 is 345040343.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343040543 - 2⁶ = 343040479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343042543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171520271 + 171520272.

It is an arithmetic number, because the mean of its divisors is an integer number (171520272).

Almost surely, 2^343040543 is an apocalyptic number.

343040543 is a deficient number, since it is larger than the sum of its proper divisors (1).

343040543 is an equidigital number, since it uses as much as digits as its factorization.

343040543 is an evil number, because the sum of its binary digits is even.

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

The square root of 343040543 is about 18521.3537032259. The cubic root of 343040543 is about 700.0275791855.

Adding to 343040543 its reverse (345040343), we get a palindrome (688080886).

The spelling of 343040543 in words is "three hundred forty-three million, forty thousand, five hundred forty-three".