1103436809 has 2 divisors, whose sum is σ = 1103436810. Its totient is φ = 1103436808.

The previous prime is 1103436797. The next prime is 1103436811. The reversal of 1103436809 is 9086343011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 815388025 + 288048784 = 28555^2 + 16972^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103436809 - 2¹⁶ = 1103371273 is a prime.

It is a super-2 number, since 2×1103436809² = 2435145582912204962, which contains 22 as substring.

Together with 1103436811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1103436709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551718404 + 551718405.

It is an arithmetic number, because the mean of its divisors is an integer number (551718405).

Almost surely, 2^1103436809 is an apocalyptic number.

It is an amenable number.

1103436809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103436809 is an equidigital number, since it uses as much as digits as its factorization.

1103436809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1103436809 is about 33218.0193419174. The cubic root of 1103436809 is about 1033.3540733842.

The spelling of 1103436809 in words is "one billion, one hundred three million, four hundred thirty-six thousand, eight hundred nine".