43000063 has 2 divisors, whose sum is σ = 43000064. Its totient is φ = 43000062.

The previous prime is 43000057. The next prime is 43000081. The reversal of 43000063 is 36000034.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43000063 is a prime.

43000063 is a modest number, since divided by 63 gives 43 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43000093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21500031 + 21500032.

It is an arithmetic number, because the mean of its divisors is an integer number (21500032).

Almost surely, 2^43000063 is an apocalyptic number.

43000063 is a deficient number, since it is larger than the sum of its proper divisors (1).

43000063 is an equidigital number, since it uses as much as digits as its factorization.

43000063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 43000063 is about 6557.4433280052. The cubic root of 43000063 is about 350.3399771348.

Adding to 43000063 its reverse (36000034), we get a palindrome (79000097).

The spelling of 43000063 in words is "forty-three million, sixty-three", and thus it is an aban number and an uban number.