1422544247 has 2 divisors, whose sum is σ = 1422544248. Its totient is φ = 1422544246.

The previous prime is 1422544223. The next prime is 1422544261. The reversal of 1422544247 is 7424452241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1422544247 - 2¹² = 1422540151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422544147) 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, 711272123 + 711272124.

It is an arithmetic number, because the mean of its divisors is an integer number (711272124).

Almost surely, 2^1422544247 is an apocalyptic number.

1422544247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422544247 is an equidigital number, since it uses as much as digits as its factorization.

1422544247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71680, while the sum is 35.

The square root of 1422544247 is about 37716.6309073332. The cubic root of 1422544247 is about 1124.6617576064.

Adding to 1422544247 its reverse (7424452241), we get a palindrome (8846996488).

The spelling of 1422544247 in words is "one billion, four hundred twenty-two million, five hundred forty-four thousand, two hundred forty-seven".