140423243 has 8 divisors (see below), whose sum is σ = 148518720. Its totient is φ = 132398280.

The previous prime is 140423207. The next prime is 140423317. The reversal of 140423243 is 342324041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140423243 - 2⁸ = 140422987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140423203) 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 7 ways as a sum of consecutive naturals, for example, 13505 + ... + 21522.

It is an arithmetic number, because the mean of its divisors is an integer number (18564840).

Almost surely, 2^140423243 is an apocalyptic number.

140423243 is a deficient number, since it is larger than the sum of its proper divisors (8095477).

140423243 is a wasteful number, since it uses less digits than its factorization.

140423243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35257.

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

The square root of 140423243 is about 11850.0313501695. The cubic root of 140423243 is about 519.7721425273.

Adding to 140423243 its reverse (342324041), we get a palindrome (482747284).

The spelling of 140423243 in words is "one hundred forty million, four hundred twenty-three thousand, two hundred forty-three".