422142293 has 2 divisors, whose sum is σ = 422142294. Its totient is φ = 422142292.

The previous prime is 422142271. The next prime is 422142313. The reversal of 422142293 is 392241224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404894884 + 17247409 = 20122^2 + 4153^2 .

It is a cyclic number.

It is not a de Polignac number, because 422142293 - 2⁶ = 422142229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422142263) 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, 211071146 + 211071147.

It is an arithmetic number, because the mean of its divisors is an integer number (211071147).

Almost surely, 2^422142293 is an apocalyptic number.

It is an amenable number.

422142293 is a deficient number, since it is larger than the sum of its proper divisors (1).

422142293 is an equidigital number, since it uses as much as digits as its factorization.

422142293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 422142293 is about 20546.1016497047. The cubic root of 422142293 is about 750.1583624113.

The spelling of 422142293 in words is "four hundred twenty-two million, one hundred forty-two thousand, two hundred ninety-three".