140783452609 has 2 divisors, whose sum is σ = 140783452610. Its totient is φ = 140783452608.

The previous prime is 140783452597. The next prime is 140783452643. The reversal of 140783452609 is 906254387041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115037645584 + 25745807025 = 339172^2 + 160455^2 .

It is an emirp because it is prime and its reverse (906254387041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140783452609 - 2²⁷ = 140649234881 is a prime.

It is not a weakly prime, because it can be changed into another prime (140783452699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70391726304 + 70391726305.

It is an arithmetic number, because the mean of its divisors is an integer number (70391726305).

It is a 1-persistent number, because it is pandigital, but 2⋅140783452609 = 281566905218 is not.

Almost surely, 2^140783452609 is an apocalyptic number.

It is an amenable number.

140783452609 is a deficient number, since it is larger than the sum of its proper divisors (1).

140783452609 is an equidigital number, since it uses as much as digits as its factorization.

140783452609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 140783452609 in words is "one hundred forty billion, seven hundred eighty-three million, four hundred fifty-two thousand, six hundred nine".