43254430139 has 2 divisors, whose sum is σ = 43254430140. Its totient is φ = 43254430138.

The previous prime is 43254430073. The next prime is 43254430147. The reversal of 43254430139 is 93103445234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43254430139 - 2¹⁶ = 43254364603 is a prime.

It is not a weakly prime, because it can be changed into another prime (43254432139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21627215069 + 21627215070.

It is an arithmetic number, because the mean of its divisors is an integer number (21627215070).

Almost surely, 2^43254430139 is an apocalyptic number.

43254430139 is a deficient number, since it is larger than the sum of its proper divisors (1).

43254430139 is an equidigital number, since it uses as much as digits as its factorization.

43254430139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 43254430139 in words is "forty-three billion, two hundred fifty-four million, four hundred thirty thousand, one hundred thirty-nine".