140044043 has 4 divisors (see below), whose sum is σ = 141146880. Its totient is φ = 138941208.

The previous prime is 140043997. The next prime is 140044063. The reversal of 140044043 is 340440041.

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

It is a cyclic number.

It is not a de Polignac number, because 140044043 - 2⁶ = 140043979 is a prime.

It is a super-2 number, since 2×140044043² = 39224667959571698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140044063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551228 + ... + 551481.

It is an arithmetic number, because the mean of its divisors is an integer number (35286720).

Almost surely, 2^140044043 is an apocalyptic number.

140044043 is a deficient number, since it is larger than the sum of its proper divisors (1102837).

140044043 is a wasteful number, since it uses less digits than its factorization.

140044043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102836.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 140044043 is about 11834.0205762877. The cubic root of 140044043 is about 519.3038551947.

Adding to 140044043 its reverse (340440041), we get a palindrome (480484084).

The spelling of 140044043 in words is "one hundred forty million, forty-four thousand, forty-three".