1123582609 has 2 divisors, whose sum is σ = 1123582610. Its totient is φ = 1123582608.

The previous prime is 1123582571. The next prime is 1123582633. The reversal of 1123582609 is 9062853211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 635040000 + 488542609 = 25200^2 + 22103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123582609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123582709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561791304 + 561791305.

It is an arithmetic number, because the mean of its divisors is an integer number (561791305).

Almost surely, 2^1123582609 is an apocalyptic number.

It is an amenable number.

1123582609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123582609 is an equidigital number, since it uses as much as digits as its factorization.

1123582609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1123582609 is about 33519.8837855981. The cubic root of 1123582609 is about 1039.6049439489.

The spelling of 1123582609 in words is "one billion, one hundred twenty-three million, five hundred eighty-two thousand, six hundred nine".