140139 has 12 divisors (see below), whose sum is σ = 211536. Its totient is φ = 89232.

The previous prime is 140123. The next prime is 140143. The reversal of 140139 is 931041.

140139 = 22² + 23² + ... + 75².

140139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140139 - 2⁴ = 140123 is a prime.

It is a plaindrome in base 7 and base 16.

It is not an unprimeable number, because it can be changed into a prime (140159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132 + ... + 545.

It is an arithmetic number, because the mean of its divisors is an integer number (17628).

2¹⁴⁰¹³⁹ is an apocalyptic number.

140139 is a deficient number, since it is larger than the sum of its proper divisors (71397).

140139 is a wasteful number, since it uses less digits than its factorization.

140139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 140139 is about 374.3514391584. The cubic root of 140139 is about 51.9421200172.

The spelling of 140139 in words is "one hundred forty thousand, one hundred thirty-nine".