140434223 has 2 divisors, whose sum is σ = 140434224. Its totient is φ = 140434222.

The previous prime is 140434213. The next prime is 140434267. The reversal of 140434223 is 322434041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140434223 - 2⁴ = 140434207 is a prime.

It is a super-2 number, since 2×140434223² = 39443541979227458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140434213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70217111 + 70217112.

It is an arithmetic number, because the mean of its divisors is an integer number (70217112).

Almost surely, 2^140434223 is an apocalyptic number.

140434223 is a deficient number, since it is larger than the sum of its proper divisors (1).

140434223 is an equidigital number, since it uses as much as digits as its factorization.

140434223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 140434223 is about 11850.4946310270. The cubic root of 140434223 is about 519.7856895472.

Adding to 140434223 its reverse (322434041), we get a palindrome (462868264).

The spelling of 140434223 in words is "one hundred forty million, four hundred thirty-four thousand, two hundred twenty-three".