422215529 has 2 divisors, whose sum is σ = 422215530. Its totient is φ = 422215528.

The previous prime is 422215501. The next prime is 422215559. The reversal of 422215529 is 925512224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227557225 + 194658304 = 15085^2 + 13952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422215529 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 422215495 and 422215504.

It is not a weakly prime, because it can be changed into another prime (422215559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211107764 + 211107765.

It is an arithmetic number, because the mean of its divisors is an integer number (211107765).

Almost surely, 2^422215529 is an apocalyptic number.

It is an amenable number.

422215529 is a deficient number, since it is larger than the sum of its proper divisors (1).

422215529 is an equidigital number, since it uses as much as digits as its factorization.

422215529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 32.

The square root of 422215529 is about 20547.8838083147. The cubic root of 422215529 is about 750.2017406924.

The spelling of 422215529 in words is "four hundred twenty-two million, two hundred fifteen thousand, five hundred twenty-nine".