1122446789 has 2 divisors, whose sum is σ = 1122446790. Its totient is φ = 1122446788.

The previous prime is 1122446761. The next prime is 1122446803. The reversal of 1122446789 is 9876442211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1048658689 + 73788100 = 32383^2 + 8590^2 .

It is an emirp because it is prime and its reverse (9876442211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122446789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122446749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561223394 + 561223395.

It is an arithmetic number, because the mean of its divisors is an integer number (561223395).

Almost surely, 2^1122446789 is an apocalyptic number.

It is an amenable number.

1122446789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122446789 is an equidigital number, since it uses as much as digits as its factorization.

1122446789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 1122446789 is about 33502.9370205061. The cubic root of 1122446789 is about 1039.2545166076.

The spelling of 1122446789 in words is "one billion, one hundred twenty-two million, four hundred forty-six thousand, seven hundred eighty-nine".