103520009 has 2 divisors, whose sum is σ = 103520010. Its totient is φ = 103520008.

The previous prime is 103520003. The next prime is 103520017. The reversal of 103520009 is 900025301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89718784 + 13801225 = 9472^2 + 3715^2 .

It is a cyclic number.

It is not a de Polignac number, because 103520009 - 2⁴ = 103519993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103520003) 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, 51760004 + 51760005.

It is an arithmetic number, because the mean of its divisors is an integer number (51760005).

Almost surely, 2^103520009 is an apocalyptic number.

It is an amenable number.

103520009 is a deficient number, since it is larger than the sum of its proper divisors (1).

103520009 is an equidigital number, since it uses as much as digits as its factorization.

103520009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 103520009 is about 10174.4783158647. The cubic root of 103520009 is about 469.5423476346.

The spelling of 103520009 in words is "one hundred three million, five hundred twenty thousand, nine".