140443523 has 4 divisors (see below), whose sum is σ = 153211128. Its totient is φ = 127675920.

The previous prime is 140443517. The next prime is 140443577. The reversal of 140443523 is 325344041.

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 140443523 - 2⁴ = 140443507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140443492 and 140443501.

It is not an unprimeable number, because it can be changed into a prime (140443123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6383786 + ... + 6383807.

It is an arithmetic number, because the mean of its divisors is an integer number (38302782).

Almost surely, 2^140443523 is an apocalyptic number.

140443523 is a deficient number, since it is larger than the sum of its proper divisors (12767605).

140443523 is a wasteful number, since it uses less digits than its factorization.

140443523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12767604.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 140443523 is about 11850.8870132155. The cubic root of 140443523 is about 519.7971632466.

Adding to 140443523 its reverse (325344041), we get a palindrome (465787564).

The spelling of 140443523 in words is "one hundred forty million, four hundred forty-three thousand, five hundred twenty-three".