140508329 has 8 divisors (see below), whose sum is σ = 151681992. Its totient is φ = 129386880.

The previous prime is 140508307. The next prime is 140508331. The reversal of 140508329 is 923805041.

It can be written as a sum of positive squares in 4 ways, for example, as 133225 + 140375104 = 365^2 + 11848^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140508329 - 2⁸ = 140508073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140508295 and 140508304.

It is not an unprimeable number, because it can be changed into a prime (140508359) 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 in 7 ways as a sum of consecutive naturals, for example, 7364 + ... + 18309.

It is an arithmetic number, because the mean of its divisors is an integer number (18960249).

Almost surely, 2^140508329 is an apocalyptic number.

It is an amenable number.

140508329 is a deficient number, since it is larger than the sum of its proper divisors (11173663).

140508329 is a wasteful number, since it uses less digits than its factorization.

140508329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26107.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 140508329 is about 11853.6209235828. The cubic root of 140508329 is about 519.8771023667.

The spelling of 140508329 in words is "one hundred forty million, five hundred eight thousand, three hundred twenty-nine".