140335243 has 2 divisors, whose sum is σ = 140335244. Its totient is φ = 140335242.

The previous prime is 140335219. The next prime is 140335271. The reversal of 140335243 is 342533041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140335243 is a prime.

It is not a weakly prime, because it can be changed into another prime (140333243) 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 as a sum of consecutive naturals, namely, 70167621 + 70167622.

It is an arithmetic number, because the mean of its divisors is an integer number (70167622).

Almost surely, 2^140335243 is an apocalyptic number.

140335243 is a deficient number, since it is larger than the sum of its proper divisors (1).

140335243 is an equidigital number, since it uses as much as digits as its factorization.

140335243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 140335243 is about 11846.3176979178. The cubic root of 140335243 is about 519.6635434435.

Adding to 140335243 its reverse (342533041), we get a palindrome (482868284).

The spelling of 140335243 in words is "one hundred forty million, three hundred thirty-five thousand, two hundred forty-three".