140444143 has 24 divisors (see below), whose sum is σ = 174862320. Its totient is φ = 112129920.

The previous prime is 140444137. The next prime is 140444153. The reversal of 140444143 is 341444041.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-140444143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140444113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55555 + ... + 58027.

It is an arithmetic number, because the mean of its divisors is an integer number (7285930).

Almost surely, 2^140444143 is an apocalyptic number.

140444143 is a deficient number, since it is larger than the sum of its proper divisors (34418177).

140444143 is a wasteful number, since it uses less digits than its factorization.

140444143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567 (or 2560 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 140444143 is about 11850.9131715661. The cubic root of 140444143 is about 519.7979281419.

Adding to 140444143 its reverse (341444041), we get a palindrome (481888184).

The spelling of 140444143 in words is "one hundred forty million, four hundred forty-four thousand, one hundred forty-three".