140439693 has 8 divisors (see below), whose sum is σ = 187311168. Its totient is φ = 93597344.

The previous prime is 140439671. The next prime is 140439709. The reversal of 140439693 is 396934041.

140439693 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 140439693 - 2⁵ = 140439661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140439493) 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, 9496 + ... + 19262.

It is an arithmetic number, because the mean of its divisors is an integer number (23413896).

Almost surely, 2^140439693 is an apocalyptic number.

It is an amenable number.

140439693 is a deficient number, since it is larger than the sum of its proper divisors (46871475).

140439693 is an equidigital number, since it uses as much as digits as its factorization.

140439693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14563.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 140439693 is about 11850.7254208339. The cubic root of 140439693 is about 519.7924381178.

The spelling of 140439693 in words is "one hundred forty million, four hundred thirty-nine thousand, six hundred ninety-three".