140322423 has 4 divisors (see below), whose sum is σ = 187096568. Its totient is φ = 93548280.

The previous prime is 140322421. The next prime is 140322439. The reversal of 140322423 is 324223041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324223041 = 3 ⋅108074347.

It is not a de Polignac number, because 140322423 - 2¹ = 140322421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140322423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140322421) 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, 23387068 + ... + 23387073.

It is an arithmetic number, because the mean of its divisors is an integer number (46774142).

Almost surely, 2^140322423 is an apocalyptic number.

140322423 is a deficient number, since it is larger than the sum of its proper divisors (46774145).

140322423 is an equidigital number, since it uses as much as digits as its factorization.

140322423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46774144.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 140322423 is about 11845.7765891477. The cubic root of 140322423 is about 519.6477187432.

Adding to 140322423 its reverse (324223041), we get a palindrome (464545464).

The spelling of 140322423 in words is "one hundred forty million, three hundred twenty-two thousand, four hundred twenty-three".