140444243 has 2 divisors, whose sum is σ = 140444244. Its totient is φ = 140444242.

The previous prime is 140444221. The next prime is 140444273. The reversal of 140444243 is 342444041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140444243 - 2²⁰ = 139395667 is a prime.

It is not a weakly prime, because it can be changed into another prime (140444203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70222121 + 70222122.

It is an arithmetic number, because the mean of its divisors is an integer number (70222122).

Almost surely, 2^140444243 is an apocalyptic number.

140444243 is a deficient number, since it is larger than the sum of its proper divisors (1).

140444243 is an equidigital number, since it uses as much as digits as its factorization.

140444243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 140444243 is about 11850.9173906496. The cubic root of 140444243 is about 519.7980515119.

Adding to 140444243 its reverse (342444041), we get a palindrome (482888284).

The spelling of 140444243 in words is "one hundred forty million, four hundred forty-four thousand, two hundred forty-three".