140005143 has 24 divisors (see below), whose sum is σ = 207916800. Its totient is φ = 90748944.

The previous prime is 140005141. The next prime is 140005153. The reversal of 140005143 is 341500041.

It is a happy number.

It is not a de Polignac number, because 140005143 - 2¹ = 140005141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140005141) 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 23 ways as a sum of consecutive naturals, for example, 46168 + ... + 49106.

It is an arithmetic number, because the mean of its divisors is an integer number (8663200).

Almost surely, 2^140005143 is an apocalyptic number.

140005143 is a deficient number, since it is larger than the sum of its proper divisors (67911657).

140005143 is a wasteful number, since it uses less digits than its factorization.

140005143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091 (or 3088 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 140005143 is about 11832.3768956199. The cubic root of 140005143 is about 519.2557684399.

Adding to 140005143 its reverse (341500041), we get a palindrome (481505184).

The spelling of 140005143 in words is "one hundred forty million, five thousand, one hundred forty-three".