140555 has 4 divisors (see below), whose sum is σ = 168672. Its totient is φ = 112440.

The previous prime is 140551. The next prime is 140557. The reversal of 140555 is 555041.

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

It is not a de Polignac number, because 140555 - 2² = 140551 is a prime.

It is a Duffinian number.

140555 is a modest number, since divided by 555 gives 140 as remainder.

It is not an unprimeable number, because it can be changed into a prime (140551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14051 + ... + 14060.

It is an arithmetic number, because the mean of its divisors is an integer number (42168).

2¹⁴⁰⁵⁵⁵ is an apocalyptic number.

140555 is a deficient number, since it is larger than the sum of its proper divisors (28117).

140555 is an equidigital number, since it uses as much as digits as its factorization.

140555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28116.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 140555 is about 374.9066550490. The cubic root of 140555 is about 51.9934656484.

Adding to 140555 its reverse (555041), we get a palindrome (695596).

The spelling of 140555 in words is "one hundred forty thousand, five hundred fifty-five".