140247343 has 2 divisors, whose sum is σ = 140247344. Its totient is φ = 140247342.

The previous prime is 140247329. The next prime is 140247377. The reversal of 140247343 is 343742041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140247343 - 2²¹ = 138150191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140247043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70123671 + 70123672.

It is an arithmetic number, because the mean of its divisors is an integer number (70123672).

Almost surely, 2^140247343 is an apocalyptic number.

140247343 is a deficient number, since it is larger than the sum of its proper divisors (1).

140247343 is an equidigital number, since it uses as much as digits as its factorization.

140247343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 140247343 is about 11842.6071031678. The cubic root of 140247343 is about 519.5550224362. Note that the first 3 decimals are identical.

Adding to 140247343 its reverse (343742041), we get a palindrome (483989384).

The spelling of 140247343 in words is "one hundred forty million, two hundred forty-seven thousand, three hundred forty-three".