140662543 has 4 divisors (see below), whose sum is σ = 160757200. Its totient is φ = 120567888.

The previous prime is 140662537. The next prime is 140662591. The reversal of 140662543 is 345266041.

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

It is not a de Polignac number, because 140662543 - 2⁹ = 140662031 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 (140662243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10047318 + ... + 10047331.

It is an arithmetic number, because the mean of its divisors is an integer number (40189300).

Almost surely, 2^140662543 is an apocalyptic number.

140662543 is a deficient number, since it is larger than the sum of its proper divisors (20094657).

140662543 is an equidigital number, since it uses as much as digits as its factorization.

140662543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20094656.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 140662543 is about 11860.1240718637. The cubic root of 140662543 is about 520.0672287339.

The spelling of 140662543 in words is "one hundred forty million, six hundred sixty-two thousand, five hundred forty-three".