140441 has 4 divisors (see below), whose sum is σ = 160512. Its totient is φ = 120372.

The previous prime is 140423. The next prime is 140443. The reversal of 140441 is 144041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-140441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (140443) 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, 10025 + ... + 10038.

It is an arithmetic number, because the mean of its divisors is an integer number (40128).

2¹⁴⁰⁴⁴¹ is an apocalyptic number.

It is an amenable number.

140441 is a deficient number, since it is larger than the sum of its proper divisors (20071).

140441 is an equidigital number, since it uses as much as digits as its factorization.

140441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20070.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 140441 is about 374.7545863629. The cubic root of 140441 is about 51.9794050593.

Adding to 140441 its reverse (144041), we get a palindrome (284482).

Subtracting 140441 from its reverse (144041), we obtain a square (3600 = 60²).

The spelling of 140441 in words is "one hundred forty thousand, four hundred forty-one", and thus it is an iban number.