140043423 has 16 divisors (see below), whose sum is σ = 201342176. Its totient is φ = 86071680.

The previous prime is 140043401. The next prime is 140043427. The reversal of 140043423 is 324340041.

140043423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140043423 - 2⁵ = 140043391 is a prime.

It is a super-2 number, since 2×140043423² = 39224320651113858, which contains 22 as substring.

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 140043423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140043427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38061 + ... + 41577.

It is an arithmetic number, because the mean of its divisors is an integer number (12583886).

Almost surely, 2^140043423 is an apocalyptic number.

140043423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140043423 is a deficient number, since it is larger than the sum of its proper divisors (61298753).

140043423 is a wasteful number, since it uses less digits than its factorization.

140043423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554.

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

The square root of 140043423 is about 11833.9943805969. The cubic root of 140043423 is about 519.3030888432.

Adding to 140043423 its reverse (324340041), we get a palindrome (464383464).

The spelling of 140043423 in words is "one hundred forty million, forty-three thousand, four hundred twenty-three".