1109227913 has 2 divisors, whose sum is σ = 1109227914. Its totient is φ = 1109227912.

The previous prime is 1109227897. The next prime is 1109227939. The reversal of 1109227913 is 3197229011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1071121984 + 38105929 = 32728^2 + 6173^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109227913 - 2⁴ = 1109227897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1109227943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554613956 + 554613957.

It is an arithmetic number, because the mean of its divisors is an integer number (554613957).

Almost surely, 2^1109227913 is an apocalyptic number.

It is an amenable number.

1109227913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109227913 is an equidigital number, since it uses as much as digits as its factorization.

1109227913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 1109227913 is about 33305.0733822942. The cubic root of 1109227913 is about 1035.1586843131.

The spelling of 1109227913 in words is "one billion, one hundred nine million, two hundred twenty-seven thousand, nine hundred thirteen".