103244809 has 2 divisors, whose sum is σ = 103244810. Its totient is φ = 103244808.

The previous prime is 103244783. The next prime is 103244857. The reversal of 103244809 is 908442301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58982400 + 44262409 = 7680^2 + 6653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103244809 is a prime.

It is not a weakly prime, because it can be changed into another prime (103244209) 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, 51622404 + 51622405.

It is an arithmetic number, because the mean of its divisors is an integer number (51622405).

Almost surely, 2^103244809 is an apocalyptic number.

It is an amenable number.

103244809 is a deficient number, since it is larger than the sum of its proper divisors (1).

103244809 is an equidigital number, since it uses as much as digits as its factorization.

103244809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 103244809 is about 10160.9452808289. The cubic root of 103244809 is about 469.1258976163.

The spelling of 103244809 in words is "one hundred three million, two hundred forty-four thousand, eight hundred nine".