140255 has 4 divisors (see below), whose sum is σ = 168312. Its totient is φ = 112200.

The previous prime is 140249. The next prime is 140263. The reversal of 140255 is 552041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 140255 - 2⁶ = 140191 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9 and base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140255.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14021 + ... + 14030.

It is an arithmetic number, because the mean of its divisors is an integer number (42078).

2¹⁴⁰²⁵⁵ is an apocalyptic number.

140255 is a deficient number, since it is larger than the sum of its proper divisors (28057).

140255 is an equidigital number, since it uses as much as digits as its factorization.

140255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28056.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 140255 is about 374.5063417354. The cubic root of 140255 is about 51.9564477542.

Adding to 140255 its reverse (552041), we get a palindrome (692296).

It can be divided in two parts, 14025 and 5, that multiplied together give a triangular number (70125 = T₃₇₄).

The spelling of 140255 in words is "one hundred forty thousand, two hundred fifty-five".