499994543 has 2 divisors, whose sum is σ = 499994544. Its totient is φ = 499994542.

The previous prime is 499994533. The next prime is 499994563. The reversal of 499994543 is 345499994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499994543 - 2¹⁴ = 499978159 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499994533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249997271 + 249997272.

It is an arithmetic number, because the mean of its divisors is an integer number (249997272).

Almost surely, 2^499994543 is an apocalyptic number.

499994543 is a deficient number, since it is larger than the sum of its proper divisors (1).

499994543 is an equidigital number, since it uses as much as digits as its factorization.

499994543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 56.

The square root of 499994543 is about 22360.5577524354. The cubic root of 499994543 is about 793.6976384911.

The spelling of 499994543 in words is "four hundred ninety-nine million, nine hundred ninety-four thousand, five hundred forty-three".