4000124543 has 2 divisors, whose sum is σ = 4000124544. Its totient is φ = 4000124542.

The previous prime is 4000124503. The next prime is 4000124561. The reversal of 4000124543 is 3454210004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4000124543 - 2¹⁴ = 4000108159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000124503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000062271 + 2000062272.

It is an arithmetic number, because the mean of its divisors is an integer number (2000062272).

Almost surely, 2^4000124543 is an apocalyptic number.

4000124543 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000124543 is an equidigital number, since it uses as much as digits as its factorization.

4000124543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 4000124543 is about 63246.5377945702. The cubic root of 4000124543 is about 1587.4175267713.

Adding to 4000124543 its reverse (3454210004), we get a palindrome (7454334547).

The spelling of 4000124543 in words is "four billion, one hundred twenty-four thousand, five hundred forty-three".