140008427329 has 3 divisors (see below), whose sum is σ = 140008801507. Its totient is φ = 140008053152.

The previous prime is 140008427327. The next prime is 140008427359. The reversal of 140008427329 is 923724800041.

The square root of 140008427329 is 374177.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 117940730625 + 22067696704 = 343425^2 + 148552^2 .

It is not a de Polignac number, because 140008427329 - 2¹ = 140008427327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140008427291 and 140008427300.

It is not an unprimeable number, because it can be changed into a prime (140008427327) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 187089 + ... + 561265.

Almost surely, 2^140008427329 is an apocalyptic number.

140008427329 is the 374177-th square number.

140008427329 is the 187089-th centered octagonal number.

It is an amenable number.

140008427329 is a deficient number, since it is larger than the sum of its proper divisors (374178).

140008427329 is an frugal number, since it uses more digits than its factorization.

140008427329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748354 (or 374177 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 140008427329 in words is "one hundred forty billion, eight million, four hundred twenty-seven thousand, three hundred twenty-nine".