140020239 has 8 divisors (see below), whose sum is σ = 188542512. Its totient is φ = 92422400.

The previous prime is 140020219. The next prime is 140020241. The reversal of 140020239 is 932020041.

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 140020239 - 2⁹ = 140019727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140020219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230754 + ... + 231359.

It is an arithmetic number, because the mean of its divisors is an integer number (23567814).

Almost surely, 2^140020239 is an apocalyptic number.

140020239 is a deficient number, since it is larger than the sum of its proper divisors (48522273).

140020239 is a wasteful number, since it uses less digits than its factorization.

140020239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462217.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 140020239 is about 11833.0147891397. The cubic root of 140020239 is about 519.2744306195.

The spelling of 140020239 in words is "one hundred forty million, twenty thousand, two hundred thirty-nine".