103030209 has 6 divisors (see below), whose sum is σ = 148821426. Its totient is φ = 68686800.

The previous prime is 103030189. The next prime is 103030211. The reversal of 103030209 is 902030301.

It can be written as a sum of positive squares in only one way, i.e., 92160000 + 10870209 = 9600^2 + 3297^2 .

It is not a de Polignac number, because 103030209 - 2⁵ = 103030177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103030191 and 103030200.

It is not an unprimeable number, because it can be changed into a prime (103030219) 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 in 5 ways as a sum of consecutive naturals, for example, 5723892 + ... + 5723909.

It is an arithmetic number, because the mean of its divisors is an integer number (24803571).

Almost surely, 2^103030209 is an apocalyptic number.

It is an amenable number.

103030209 is a deficient number, since it is larger than the sum of its proper divisors (45791217).

103030209 is a wasteful number, since it uses less digits than its factorization.

103030209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11447807 (or 11447804 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 103030209 is about 10150.3797465908. The cubic root of 103030209 is about 468.8006375163.

The spelling of 103030209 in words is "one hundred three million, thirty thousand, two hundred nine".