140543673 has 4 divisors (see below), whose sum is σ = 187391568. Its totient is φ = 93695780.

The previous prime is 140543671. The next prime is 140543681. The reversal of 140543673 is 376345041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140543673 - 2¹ = 140543671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140543671) 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 3 ways as a sum of consecutive naturals, for example, 23423943 + ... + 23423948.

It is an arithmetic number, because the mean of its divisors is an integer number (46847892).

Almost surely, 2^140543673 is an apocalyptic number.

It is an amenable number.

140543673 is a deficient number, since it is larger than the sum of its proper divisors (46847895).

140543673 is an equidigital number, since it uses as much as digits as its factorization.

140543673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46847894.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 140543673 is about 11855.1116823082. Note that the first 3 decimals coincide. The cubic root of 140543673 is about 519.9206893341.

The spelling of 140543673 in words is "one hundred forty million, five hundred forty-three thousand, six hundred seventy-three".