140439748597 has 6 divisors (see below), whose sum is σ = 144237758658. Its totient is φ = 136641861792.

The previous prime is 140439748591. The next prime is 140439748607. The reversal of 140439748597 is 795847934041.

It can be written as a sum of positive squares in 3 ways, for example, as 2656990116 + 137782758481 = 51546^2 + 371191^2 .

It is not a de Polignac number, because 140439748597 - 2³⁵ = 106080010229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140439748591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2248729 + ... + 2310337.

It is an arithmetic number, because the mean of its divisors is an integer number (24039626443).

Almost surely, 2^140439748597 is an apocalyptic number.

It is an amenable number.

140439748597 is a deficient number, since it is larger than the sum of its proper divisors (3798010061).

140439748597 is an frugal number, since it uses more digits than its factorization.

140439748597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123255 (or 61646 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 140439748597 in words is "one hundred forty billion, four hundred thirty-nine million, seven hundred forty-eight thousand, five hundred ninety-seven".