1103749289 has 2 divisors, whose sum is σ = 1103749290. Its totient is φ = 1103749288.

The previous prime is 1103749271. The next prime is 1103749291. The reversal of 1103749289 is 9829473011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1097795689 + 5953600 = 33133^2 + 2440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103749289 - 2⁸ = 1103749033 is a prime.

Together with 1103749291, 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 (1103749219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551874644 + 551874645.

It is an arithmetic number, because the mean of its divisors is an integer number (551874645).

Almost surely, 2^1103749289 is an apocalyptic number.

It is an amenable number.

1103749289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103749289 is an equidigital number, since it uses as much as digits as its factorization.

1103749289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1103749289 is about 33222.7224802544. The cubic root of 1103749289 is about 1033.4516086492.

The spelling of 1103749289 in words is "one billion, one hundred three million, seven hundred forty-nine thousand, two hundred eighty-nine".