140305143 has 16 divisors (see below), whose sum is σ = 204299136. Its totient is φ = 84942240.

The previous prime is 140305093. The next prime is 140305153. The reversal of 140305143 is 341503041.

It is not a de Polignac number, because 140305143 - 2⁸ = 140304887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140305153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41505 + ... + 44757.

It is an arithmetic number, because the mean of its divisors is an integer number (12768696).

Almost surely, 2^140305143 is an apocalyptic number.

140305143 is a deficient number, since it is larger than the sum of its proper divisors (63993993).

140305143 is a wasteful number, since it uses less digits than its factorization.

140305143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 140305143 is about 11845.0471928144. The cubic root of 140305143 is about 519.6263872007.

Adding to 140305143 its reverse (341503041), we get a palindrome (481808184).

The spelling of 140305143 in words is "one hundred forty million, three hundred five thousand, one hundred forty-three".