1119804109 has 2 divisors, whose sum is σ = 1119804110. Its totient is φ = 1119804108.

The previous prime is 1119804079. The next prime is 1119804143. The reversal of 1119804109 is 9014089111.

It is an a-pointer prime, because the next prime (1119804143) can be obtained adding 1119804109 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 922822884 + 196981225 = 30378^2 + 14035^2 .

It is a cyclic number.

It is not a de Polignac number, because 1119804109 - 2²¹ = 1117706957 is a prime.

It is a super-2 number, since 2×1119804109² = 2507922485066567762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1119804209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559902054 + 559902055.

It is an arithmetic number, because the mean of its divisors is an integer number (559902055).

Almost surely, 2^1119804109 is an apocalyptic number.

It is an amenable number.

1119804109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1119804109 is an equidigital number, since it uses as much as digits as its factorization.

1119804109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 34.

The square root of 1119804109 is about 33463.4742517868. The cubic root of 1119804109 is about 1038.4382714316.

The spelling of 1119804109 in words is "one billion, one hundred nineteen million, eight hundred four thousand, one hundred nine".