1109109049 has 2 divisors, whose sum is σ = 1109109050. Its totient is φ = 1109109048.

The previous prime is 1109109007. The next prime is 1109109091. The reversal of 1109109049 is 9409019011.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1109109007) and next prime (1109109091).

It can be written as a sum of positive squares in only one way, i.e., 1070271225 + 38837824 = 32715^2 + 6232^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109109049 - 2¹⁷ = 1108977977 is a prime.

It is a super-3 number, since 3×1109109049³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1109109649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554554524 + 554554525.

It is an arithmetic number, because the mean of its divisors is an integer number (554554525).

Almost surely, 2^1109109049 is an apocalyptic number.

It is an amenable number.

1109109049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109109049 is an equidigital number, since it uses as much as digits as its factorization.

1109109049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 1109109049 is about 33303.2888616125. The cubic root of 1109109049 is about 1035.1217073926.

The spelling of 1109109049 in words is "one billion, one hundred nine million, one hundred nine thousand, forty-nine".