140442299 has 2 divisors, whose sum is σ = 140442300. Its totient is φ = 140442298.

The previous prime is 140442283. The next prime is 140442359. The reversal of 140442299 is 992244041.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (992244041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140442299 - 2⁴ = 140442283 is a prime.

It is not a weakly prime, because it can be changed into another prime (140442229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70221149 + 70221150.

It is an arithmetic number, because the mean of its divisors is an integer number (70221150).

Almost surely, 2^140442299 is an apocalyptic number.

140442299 is a deficient number, since it is larger than the sum of its proper divisors (1).

140442299 is an equidigital number, since it uses as much as digits as its factorization.

140442299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 140442299 is about 11850.8353713989. The cubic root of 140442299 is about 519.7956531887.

The spelling of 140442299 in words is "one hundred forty million, four hundred forty-two thousand, two hundred ninety-nine".