140204323 has 4 divisors (see below), whose sum is σ = 160233520. Its totient is φ = 120175128.

The previous prime is 140204269. The next prime is 140204327. The reversal of 140204323 is 323402041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140204323 - 2²¹ = 138107171 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 140204323.

It is not an unprimeable number, because it can be changed into a prime (140204327) 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 3 ways as a sum of consecutive naturals, for example, 10014588 + ... + 10014601.

It is an arithmetic number, because the mean of its divisors is an integer number (40058380).

Almost surely, 2^140204323 is an apocalyptic number.

140204323 is a deficient number, since it is larger than the sum of its proper divisors (20029197).

140204323 is an equidigital number, since it uses as much as digits as its factorization.

140204323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20029196.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 140204323 is about 11840.7906408314. The cubic root of 140204323 is about 519.5018935799.

Adding to 140204323 its reverse (323402041), we get a palindrome (463606364).

The spelling of 140204323 in words is "one hundred forty million, two hundred four thousand, three hundred twenty-three".