140068839 has 8 divisors (see below), whose sum is σ = 186988672. Its totient is φ = 93264120.

The previous prime is 140068837. The next prime is 140068843. The reversal of 140068839 is 938860041.

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

It is not a de Polignac number, because 140068839 - 2¹ = 140068837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140068797 and 140068806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140068837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25897 + ... + 30834.

It is an arithmetic number, because the mean of its divisors is an integer number (23373584).

Almost surely, 2^140068839 is an apocalyptic number.

140068839 is a deficient number, since it is larger than the sum of its proper divisors (46919833).

140068839 is an equidigital number, since it uses as much as digits as its factorization.

140068839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57557.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 140068839 is about 11835.0681873828. The cubic root of 140068839 is about 519.3345024544.

The spelling of 140068839 in words is "one hundred forty million, sixty-eight thousand, eight hundred thirty-nine".