140723543 has 4 divisors (see below), whose sum is σ = 144526920. Its totient is φ = 136920168.

The previous prime is 140723537. The next prime is 140723551. The reversal of 140723543 is 345327041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345327041 = 29 ⋅11907829.

It is a cyclic number.

It is not a de Polignac number, because 140723543 - 2⁸ = 140723287 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 (140723503) 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, 1901633 + ... + 1901706.

It is an arithmetic number, because the mean of its divisors is an integer number (36131730).

Almost surely, 2^140723543 is an apocalyptic number.

140723543 is a deficient number, since it is larger than the sum of its proper divisors (3803377).

140723543 is an equidigital number, since it uses as much as digits as its factorization.

140723543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803376.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 140723543 is about 11862.6954356925. The cubic root of 140723543 is about 520.1423956678.

The spelling of 140723543 in words is "one hundred forty million, seven hundred twenty-three thousand, five hundred forty-three".