140423423 has 16 divisors (see below), whose sum is σ = 169889280. Its totient is φ = 113502816.

The previous prime is 140423389. The next prime is 140423443. The reversal of 140423423 is 324324041.

It is not a de Polignac number, because 140423423 - 2¹⁶ = 140357887 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 (140423443) 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 15 ways as a sum of consecutive naturals, for example, 686 + ... + 16772.

It is an arithmetic number, because the mean of its divisors is an integer number (10618080).

Almost surely, 2^140423423 is an apocalyptic number.

140423423 is a deficient number, since it is larger than the sum of its proper divisors (29465857).

140423423 is a wasteful number, since it uses less digits than its factorization.

140423423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16166.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 140423423 is about 11850.0389450837. The cubic root of 140423423 is about 519.7723646153.

Adding to 140423423 its reverse (324324041), we get a palindrome (464747464).

The spelling of 140423423 in words is "one hundred forty million, four hundred twenty-three thousand, four hundred twenty-three".