140434532009 has 2 divisors, whose sum is σ = 140434532010. Its totient is φ = 140434532008.

The previous prime is 140434531987. The next prime is 140434532027. The reversal of 140434532009 is 900235434041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88292179600 + 52142352409 = 297140^2 + 228347^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140434532009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140434532009.

It is not a weakly prime, because it can be changed into another prime (140434532089) 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, 70217266004 + 70217266005.

It is an arithmetic number, because the mean of its divisors is an integer number (70217266005).

Almost surely, 2^140434532009 is an apocalyptic number.

It is an amenable number.

140434532009 is a deficient number, since it is larger than the sum of its proper divisors (1).

140434532009 is an equidigital number, since it uses as much as digits as its factorization.

140434532009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 140434532009 in words is "one hundred forty billion, four hundred thirty-four million, five hundred thirty-two thousand, nine".