1109227949 has 2 divisors, whose sum is σ = 1109227950. Its totient is φ = 1109227948.

The previous prime is 1109227943. The next prime is 1109227991. The reversal of 1109227949 is 9497229011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 850597225 + 258630724 = 29165^2 + 16082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109227949 - 2¹⁶ = 1109162413 is a prime.

It is a congruent number.

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, 554613974 + 554613975.

It is an arithmetic number, because the mean of its divisors is an integer number (554613975).

Almost surely, 2^1109227949 is an apocalyptic number.

It is an amenable number.

1109227949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109227949 is an equidigital number, since it uses as much as digits as its factorization.

1109227949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 1109227949 is about 33305.0739227524. The cubic root of 1109227949 is about 1035.1586955118.

The spelling of 1109227949 in words is "one billion, one hundred nine million, two hundred twenty-seven thousand, nine hundred forty-nine".