43145257027 has 2 divisors, whose sum is σ = 43145257028. Its totient is φ = 43145257026.

The previous prime is 43145257003. The next prime is 43145257033. The reversal of 43145257027 is 72075254134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43145257027 is a prime.

It is not a weakly prime, because it can be changed into another prime (43145257427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21572628513 + 21572628514.

It is an arithmetic number, because the mean of its divisors is an integer number (21572628514).

Almost surely, 2^43145257027 is an apocalyptic number.

43145257027 is a deficient number, since it is larger than the sum of its proper divisors (1).

43145257027 is an equidigital number, since it uses as much as digits as its factorization.

43145257027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235200, while the sum is 40.

The spelling of 43145257027 in words is "forty-three billion, one hundred forty-five million, two hundred fifty-seven thousand, twenty-seven".