1123450609 has 2 divisors, whose sum is σ = 1123450610. Its totient is φ = 1123450608.

The previous prime is 1123450579. The next prime is 1123450621. The reversal of 1123450609 is 9060543211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 944640225 + 178810384 = 30735^2 + 13372^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123450609 - 2⁵ = 1123450577 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123454609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561725304 + 561725305.

It is an arithmetic number, because the mean of its divisors is an integer number (561725305).

Almost surely, 2^1123450609 is an apocalyptic number.

It is an amenable number.

1123450609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123450609 is an equidigital number, since it uses as much as digits as its factorization.

1123450609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1123450609 is about 33517.9147471915. The cubic root of 1123450609 is about 1039.5642309577.

The spelling of 1123450609 in words is "one billion, one hundred twenty-three million, four hundred fifty thousand, six hundred nine".