108653509 has 2 divisors, whose sum is σ = 108653510. Its totient is φ = 108653508.

The previous prime is 108653491. The next prime is 108653521. The reversal of 108653509 is 905356801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107702884 + 950625 = 10378^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 108653509 - 2⁹ = 108652997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108653549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54326754 + 54326755.

It is an arithmetic number, because the mean of its divisors is an integer number (54326755).

Almost surely, 2^108653509 is an apocalyptic number.

It is an amenable number.

108653509 is a deficient number, since it is larger than the sum of its proper divisors (1).

108653509 is an equidigital number, since it uses as much as digits as its factorization.

108653509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 108653509 is about 10423.6993912910. The cubic root of 108653509 is about 477.1789225158.

The spelling of 108653509 in words is "one hundred eight million, six hundred fifty-three thousand, five hundred nine".