140442323 has 16 divisors (see below), whose sum is σ = 162880704. Its totient is φ = 118609920.

The previous prime is 140442299. The next prime is 140442359. The reversal of 140442323 is 323244041.

It is a cyclic number.

It is not a de Polignac number, because 140442323 - 2⁶ = 140442259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140442223) 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, 269303 + ... + 269823.

It is an arithmetic number, because the mean of its divisors is an integer number (10180044).

Almost surely, 2^140442323 is an apocalyptic number.

140442323 is a deficient number, since it is larger than the sum of its proper divisors (22438381).

140442323 is an equidigital number, since it uses as much as digits as its factorization.

140442323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022.

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

The square root of 140442323 is about 11850.8363839857. The cubic root of 140442323 is about 519.7956827977.

Adding to 140442323 its reverse (323244041), we get a palindrome (463686364).

The spelling of 140442323 in words is "one hundred forty million, four hundred forty-two thousand, three hundred twenty-three".