140012543 has 8 divisors (see below), whose sum is σ = 152845056. Its totient is φ = 127197400.

The previous prime is 140012503. The next prime is 140012549. The reversal of 140012543 is 345210041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140012543 - 2⁶ = 140012479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140012549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17180 + ... + 23982.

It is an arithmetic number, because the mean of its divisors is an integer number (19105632).

Almost surely, 2^140012543 is an apocalyptic number.

140012543 is a deficient number, since it is larger than the sum of its proper divisors (12832513).

140012543 is a wasteful number, since it uses less digits than its factorization.

140012543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140012543 is about 11832.6895928187. The cubic root of 140012543 is about 519.2649167348.

Adding to 140012543 its reverse (345210041), we get a palindrome (485222584).

The spelling of 140012543 in words is "one hundred forty million, twelve thousand, five hundred forty-three".