140542143 has 24 divisors (see below), whose sum is σ = 218707632. Its totient is φ = 80043264.

The previous prime is 140542123. The next prime is 140542147. The reversal of 140542143 is 341245041.

It is not a de Polignac number, because 140542143 - 2²⁵ = 106987711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140542147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48121 + ... + 50957.

It is an arithmetic number, because the mean of its divisors is an integer number (9112818).

Almost surely, 2^140542143 is an apocalyptic number.

140542143 is a deficient number, since it is larger than the sum of its proper divisors (78165489).

140542143 is a wasteful number, since it uses less digits than its factorization.

140542143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191 (or 3184 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 140542143 is about 11855.0471530062. The cubic root of 140542143 is about 519.9188026571.

Adding to 140542143 its reverse (341245041), we get a palindrome (481787184).

The spelling of 140542143 in words is "one hundred forty million, five hundred forty-two thousand, one hundred forty-three".