1423226549 has 2 divisors, whose sum is σ = 1423226550. Its totient is φ = 1423226548.

The previous prime is 1423226531. The next prime is 1423226551. The reversal of 1423226549 is 9456223241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1414286449 + 8940100 = 37607^2 + 2990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423226549 is a prime.

Together with 1423226551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423226569) 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, 711613274 + 711613275.

It is an arithmetic number, because the mean of its divisors is an integer number (711613275).

Almost surely, 2^1423226549 is an apocalyptic number.

It is an amenable number.

1423226549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423226549 is an equidigital number, since it uses as much as digits as its factorization.

1423226549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The square root of 1423226549 is about 37725.6749310069. The cubic root of 1423226549 is about 1124.8415379113.

The spelling of 1423226549 in words is "one billion, four hundred twenty-three million, two hundred twenty-six thousand, five hundred forty-nine".