142842743 has 2 divisors, whose sum is σ = 142842744. Its totient is φ = 142842742.

The previous prime is 142842659. The next prime is 142842757. The reversal of 142842743 is 347248241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142842743 - 2¹⁶ = 142777207 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142842773) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71421371 + 71421372.

It is an arithmetic number, because the mean of its divisors is an integer number (71421372).

Almost surely, 2^142842743 is an apocalyptic number.

142842743 is a deficient number, since it is larger than the sum of its proper divisors (1).

142842743 is an equidigital number, since it uses as much as digits as its factorization.

142842743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 35.

The square root of 142842743 is about 11951.6836889202. The cubic root of 142842743 is about 522.7403934914.

The spelling of 142842743 in words is "one hundred forty-two million, eight hundred forty-two thousand, seven hundred forty-three".