140043 has 4 divisors (see below), whose sum is σ = 186728. Its totient is φ = 93360.

The previous prime is 140009. The next prime is 140053. The reversal of 140043 is 340041.

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

It is not a de Polignac number, because 140043 - 2⁸ = 139787 is a prime.

It is a super-2 number, since 2×140043² = 39224083698, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140053) 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, 23338 + ... + 23343.

It is an arithmetic number, because the mean of its divisors is an integer number (46682).

2¹⁴⁰⁰⁴³ is an apocalyptic number.

140043 is a deficient number, since it is larger than the sum of its proper divisors (46685).

140043 is an equidigital number, since it uses as much as digits as its factorization.

140043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46684.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 140043 is about 374.2231954329. The cubic root of 140043 is about 51.9302565992.

Adding to 140043 its reverse (340041), we get a palindrome (480084).

The spelling of 140043 in words is "one hundred forty thousand, forty-three", and thus it is an iban number.