140145443 has 2 divisors, whose sum is σ = 140145444. Its totient is φ = 140145442.

The previous prime is 140145431. The next prime is 140145449. The reversal of 140145443 is 344541041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140145443 - 2¹⁸ = 139883299 is a prime.

It is not a weakly prime, because it can be changed into another prime (140145449) 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, 70072721 + 70072722.

It is an arithmetic number, because the mean of its divisors is an integer number (70072722).

Almost surely, 2^140145443 is an apocalyptic number.

140145443 is a deficient number, since it is larger than the sum of its proper divisors (1).

140145443 is an equidigital number, since it uses as much as digits as its factorization.

140145443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 140145443 is about 11838.3040592815. The cubic root of 140145443 is about 519.4291603151.

Adding to 140145443 its reverse (344541041), we get a palindrome (484686484).

The spelling of 140145443 in words is "one hundred forty million, one hundred forty-five thousand, four hundred forty-three".