1109228137 has 2 divisors, whose sum is σ = 1109228138. Its totient is φ = 1109228136.

The previous prime is 1109228123. The next prime is 1109228167. The reversal of 1109228137 is 7318229011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1073479696 + 35748441 = 32764^2 + 5979^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109228137 - 2¹⁵ = 1109195369 is a prime.

It is not a weakly prime, because it can be changed into another prime (1109228117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554614068 + 554614069.

It is an arithmetic number, because the mean of its divisors is an integer number (554614069).

Almost surely, 2^1109228137 is an apocalyptic number.

It is an amenable number.

1109228137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109228137 is an equidigital number, since it uses as much as digits as its factorization.

1109228137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1109228137 is about 33305.0767451450. The cubic root of 1109228137 is about 1035.1587539939.

The spelling of 1109228137 in words is "one billion, one hundred nine million, two hundred twenty-eight thousand, one hundred thirty-seven".