140523223 has 4 divisors (see below), whose sum is σ = 140566968. Its totient is φ = 140479480.

The previous prime is 140523211. The next prime is 140523239. The reversal of 140523223 is 322325041.

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 140523223 - 2¹⁷ = 140392151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140523194 and 140523203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140523203) 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, 16636 + ... + 23617.

It is an arithmetic number, because the mean of its divisors is an integer number (35141742).

Almost surely, 2^140523223 is an apocalyptic number.

140523223 is a deficient number, since it is larger than the sum of its proper divisors (43745).

140523223 is an equidigital number, since it uses as much as digits as its factorization.

140523223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43744.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 140523223 is about 11854.2491537845. The cubic root of 140523223 is about 519.8954708531.

Adding to 140523223 its reverse (322325041), we get a palindrome (462848264).

The spelling of 140523223 in words is "one hundred forty million, five hundred twenty-three thousand, two hundred twenty-three".