1183228009 has 2 divisors, whose sum is σ = 1183228010. Its totient is φ = 1183228008.

The previous prime is 1183227977. The next prime is 1183228051. The reversal of 1183228009 is 9008223811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 700766784 + 482461225 = 26472^2 + 21965^2 .

It is a cyclic number.

It is not a de Polignac number, because 1183228009 - 2⁵ = 1183227977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1183228099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 591614004 + 591614005.

It is an arithmetic number, because the mean of its divisors is an integer number (591614005).

Almost surely, 2^1183228009 is an apocalyptic number.

It is an amenable number.

1183228009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1183228009 is an equidigital number, since it uses as much as digits as its factorization.

1183228009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1183228009 is about 34398.0814726636. The cubic root of 1183228009 is about 1057.6845176147.

The spelling of 1183228009 in words is "one billion, one hundred eighty-three million, two hundred twenty-eight thousand, nine".