140139698 has 8 divisors (see below), whose sum is σ = 210475692. Its totient is φ = 69981136.

The previous prime is 140139647. The next prime is 140139731. The reversal of 140139698 is 896931041.

140139698 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 139405249 + 734449 = 11807^2 + 857^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42365 + ... + 45552.

Almost surely, 2^140139698 is an apocalyptic number.

140139698 is a deficient number, since it is larger than the sum of its proper divisors (70335994).

140139698 is an equidigital number, since it uses as much as digits as its factorization.

140139698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88716.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 140139698 is about 11838.0614122414. The cubic root of 140139698 is about 519.4220625429.

The spelling of 140139698 in words is "one hundred forty million, one hundred thirty-nine thousand, six hundred ninety-eight".