142273793 has 2 divisors, whose sum is σ = 142273794. Its totient is φ = 142273792.

The previous prime is 142273759. The next prime is 142273801. The reversal of 142273793 is 397372241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140944384 + 1329409 = 11872^2 + 1153^2 .

It is a cyclic number.

It is not a de Polignac number, because 142273793 - 2¹⁰ = 142272769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (142273723) 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, 71136896 + 71136897.

It is an arithmetic number, because the mean of its divisors is an integer number (71136897).

Almost surely, 2^142273793 is an apocalyptic number.

It is an amenable number.

142273793 is a deficient number, since it is larger than the sum of its proper divisors (1).

142273793 is an equidigital number, since it uses as much as digits as its factorization.

142273793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 38.

The square root of 142273793 is about 11927.8578546192. The cubic root of 142273793 is about 522.0454360219.

The spelling of 142273793 in words is "one hundred forty-two million, two hundred seventy-three thousand, seven hundred ninety-three".