140354504509 has 2 divisors, whose sum is σ = 140354504510. Its totient is φ = 140354504508.

The previous prime is 140354504473. The next prime is 140354504527. The reversal of 140354504509 is 905405453041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88210782009 + 52143722500 = 297003^2 + 228350^2 .

It is a cyclic number.

It is not a de Polignac number, because 140354504509 - 2¹⁷ = 140354373437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140354504539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70177252254 + 70177252255.

It is an arithmetic number, because the mean of its divisors is an integer number (70177252255).

Almost surely, 2^140354504509 is an apocalyptic number.

It is an amenable number.

140354504509 is a deficient number, since it is larger than the sum of its proper divisors (1).

140354504509 is an equidigital number, since it uses as much as digits as its factorization.

140354504509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 140354504509 in words is "one hundred forty billion, three hundred fifty-four million, five hundred four thousand, five hundred nine".