140543012 has 18 divisors (see below), whose sum is σ = 261271122. Its totient is φ = 66137344.

The previous prime is 140542991. The next prime is 140543021. The reversal of 140543012 is 210345041.

It can be written as a sum of positive squares in 3 ways, for example, as 38613796 + 101929216 = 6214^2 + 10096^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59633 + ... + 61944.

Almost surely, 2^140543012 is an apocalyptic number.

It is an amenable number.

140543012 is a deficient number, since it is larger than the sum of its proper divisors (120728110).

140543012 is a wasteful number, since it uses less digits than its factorization.

140543012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121615 (or 121596 counting only the distinct ones).

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

The square root of 140543012 is about 11855.0838040058. The cubic root of 140543012 is about 519.9198742420.

Adding to 140543012 its reverse (210345041), we get a palindrome (350888053).

The spelling of 140543012 in words is "one hundred forty million, five hundred forty-three thousand, twelve".