9129140459 has 2 divisors, whose sum is σ = 9129140460. Its totient is φ = 9129140458.

The previous prime is 9129140443. The next prime is 9129140509. The reversal of 9129140459 is 9540419219.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9129140459 - 2⁴ = 9129140443 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9129140359) 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, 4564570229 + 4564570230.

It is an arithmetic number, because the mean of its divisors is an integer number (4564570230).

Almost surely, 2^9129140459 is an apocalyptic number.

9129140459 is a deficient number, since it is larger than the sum of its proper divisors (1).

9129140459 is an equidigital number, since it uses as much as digits as its factorization.

9129140459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 9129140459 is about 95546.5355677536. The cubic root of 9129140459 is about 2089.9856121809.

The spelling of 9129140459 in words is "nine billion, one hundred twenty-nine million, one hundred forty thousand, four hundred fifty-nine".