140320543 has 4 divisors (see below), whose sum is σ = 153076968. Its totient is φ = 127564120.

The previous prime is 140320517. The next prime is 140320571. The reversal of 140320543 is 345023041.

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 140320543 - 2²¹ = 138223391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140320513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6378196 + ... + 6378217.

It is an arithmetic number, because the mean of its divisors is an integer number (38269242).

Almost surely, 2^140320543 is an apocalyptic number.

140320543 is a deficient number, since it is larger than the sum of its proper divisors (12756425).

140320543 is a wasteful number, since it uses less digits than its factorization.

140320543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12756424.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 140320543 is about 11845.6972357055. The cubic root of 140320543 is about 519.6453980353.

Adding to 140320543 its reverse (345023041), we get a palindrome (485343584).

The spelling of 140320543 in words is "one hundred forty million, three hundred twenty thousand, five hundred forty-three".