205422467 has 2 divisors, whose sum is σ = 205422468. Its totient is φ = 205422466.

The previous prime is 205422463. The next prime is 205422473. The reversal of 205422467 is 764224502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205422467 - 2² = 205422463 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (205422463) 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, 102711233 + 102711234.

It is an arithmetic number, because the mean of its divisors is an integer number (102711234).

Almost surely, 2^205422467 is an apocalyptic number.

205422467 is a deficient number, since it is larger than the sum of its proper divisors (1).

205422467 is an equidigital number, since it uses as much as digits as its factorization.

205422467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 205422467 is about 14332.5666577902. The cubic root of 205422467 is about 590.0416201607.

Adding to 205422467 its reverse (764224502), we get a palindrome (969646969).

The spelling of 205422467 in words is "two hundred five million, four hundred twenty-two thousand, four hundred sixty-seven".