4138543 has 2 divisors, whose sum is σ = 4138544. Its totient is φ = 4138542.

The previous prime is 4138529. The next prime is 4138567. The reversal of 4138543 is 3458314.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4138543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4138513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069271 + 2069272.

It is an arithmetic number, because the mean of its divisors is an integer number (2069272).

Almost surely, 2^4138543 is an apocalyptic number.

4138543 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138543 is an equidigital number, since it uses as much as digits as its factorization.

4138543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 28.

The square root of 4138543 is about 2034.3409252139. The cubic root of 4138543 is about 160.5520384566.

The spelling of 4138543 in words is "four million, one hundred thirty-eight thousand, five hundred forty-three".