140239 has 12 divisors (see below), whose sum is σ = 164920. Its totient is φ = 118800.

The previous prime is 140237. The next prime is 140249. The reversal of 140239 is 932041.

It is not a de Polignac number, because 140239 - 2¹ = 140237 is a prime.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140237) 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, 2269 + ... + 2329.

2¹⁴⁰²³⁹ is an apocalyptic number.

140239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

140239 is a deficient number, since it is larger than the sum of its proper divisors (24681).

140239 is a wasteful number, since it uses less digits than its factorization.

140239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 140239 is about 374.4849796721. The cubic root of 140239 is about 51.9544719844.

140239 divided by its sum of digits (19) gives a triangular number (7381 = T₁₂₁).

It can be divided in two parts, 1402 and 39, that added together give a palindrome (1441).

The spelling of 140239 in words is "one hundred forty thousand, two hundred thirty-nine".