140205223 has 2 divisors, whose sum is σ = 140205224. Its totient is φ = 140205222.

The previous prime is 140205211. The next prime is 140205253. The reversal of 140205223 is 322502041.

It is a weak prime.

It is an emirp because it is prime and its reverse (322502041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140205223 - 2²¹ = 138108071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140205223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140205253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70102611 + 70102612.

It is an arithmetic number, because the mean of its divisors is an integer number (70102612).

Almost surely, 2^140205223 is an apocalyptic number.

140205223 is a deficient number, since it is larger than the sum of its proper divisors (1).

140205223 is an equidigital number, since it uses as much as digits as its factorization.

140205223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 140205223 is about 11840.8286449893. The cubic root of 140205223 is about 519.5030051735.

Adding to 140205223 its reverse (322502041), we get a palindrome (462707264).

The spelling of 140205223 in words is "one hundred forty million, two hundred five thousand, two hundred twenty-three".