140440543 has 4 divisors (see below), whose sum is σ = 140468040. Its totient is φ = 140413048.

The previous prime is 140440541. The next prime is 140440549. The reversal of 140440543 is 345044041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140440543 - 2¹ = 140440541 is a prime.

It is a super-2 number, since 2×140440543² = 39447092236269698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140440541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3580 + ... + 17137.

It is an arithmetic number, because the mean of its divisors is an integer number (35117010).

Almost surely, 2^140440543 is an apocalyptic number.

140440543 is a deficient number, since it is larger than the sum of its proper divisors (27497).

140440543 is an equidigital number, since it uses as much as digits as its factorization.

140440543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27496.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 140440543 is about 11850.7612835632. The cubic root of 140440543 is about 519.7934867830.

Adding to 140440543 its reverse (345044041), we get a palindrome (485484584).

The spelling of 140440543 in words is "one hundred forty million, four hundred forty thousand, five hundred forty-three".