140232823 has 4 divisors (see below), whose sum is σ = 140257888. Its totient is φ = 140207760.

The previous prime is 140232797. The next prime is 140232853. The reversal of 140232823 is 328232041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140232823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140232853) 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, 115 + ... + 16747.

It is an arithmetic number, because the mean of its divisors is an integer number (35064472).

Almost surely, 2^140232823 is an apocalyptic number.

140232823 is a deficient number, since it is larger than the sum of its proper divisors (25065).

140232823 is an equidigital number, since it uses as much as digits as its factorization.

140232823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25064.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 140232823 is about 11841.9940466123. The cubic root of 140232823 is about 519.5370917358.

Adding to 140232823 its reverse (328232041), we get a palindrome (468464864).

It can be divided in two parts, 1402 and 32823, that added together give a square (34225 = 185²).

The spelling of 140232823 in words is "one hundred forty million, two hundred thirty-two thousand, eight hundred twenty-three".