103244509 has 2 divisors, whose sum is σ = 103244510. Its totient is φ = 103244508.

The previous prime is 103244507. The next prime is 103244543. The reversal of 103244509 is 905442301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98307225 + 4937284 = 9915^2 + 2222^2 .

It is a cyclic number.

It is not a de Polignac number, because 103244509 - 2¹ = 103244507 is a prime.

Together with 103244507, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103244501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51622254 + 51622255.

It is an arithmetic number, because the mean of its divisors is an integer number (51622255).

Almost surely, 2^103244509 is an apocalyptic number.

It is an amenable number.

103244509 is a deficient number, since it is larger than the sum of its proper divisors (1).

103244509 is an equidigital number, since it uses as much as digits as its factorization.

103244509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 103244509 is about 10160.9305184122. The cubic root of 103244509 is about 469.1254432338.

The spelling of 103244509 in words is "one hundred three million, two hundred forty-four thousand, five hundred nine".