140086839 has 8 divisors (see below), whose sum is σ = 186947712. Its totient is φ = 93308600.

The previous prime is 140086831. The next prime is 140086853. The reversal of 140086839 is 938680041.

140086839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 140086839 - 2³ = 140086831 is a prime.

It is a super-2 number, since 2×140086839² = 39248644922023842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140086797 and 140086806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140086831) 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, 16587 + ... + 23564.

It is an arithmetic number, because the mean of its divisors is an integer number (23368464).

Almost surely, 2^140086839 is an apocalyptic number.

140086839 is a deficient number, since it is larger than the sum of its proper divisors (46860873).

140086839 is a wasteful number, since it uses less digits than its factorization.

140086839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41317.

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

The square root of 140086839 is about 11835.8286148457. The cubic root of 140086839 is about 519.3567477559.

The spelling of 140086839 in words is "one hundred forty million, eighty-six thousand, eight hundred thirty-nine".