103202009 has 2 divisors, whose sum is σ = 103202010. Its totient is φ = 103202008.

The previous prime is 103201993. The next prime is 103202017. The reversal of 103202009 is 900202301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80496784 + 22705225 = 8972^2 + 4765^2 .

It is an emirp because it is prime and its reverse (900202301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103202009 - 2⁴ = 103201993 is a prime.

It is not a weakly prime, because it can be changed into another prime (103202059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51601004 + 51601005.

It is an arithmetic number, because the mean of its divisors is an integer number (51601005).

Almost surely, 2^103202009 is an apocalyptic number.

It is an amenable number.

103202009 is a deficient number, since it is larger than the sum of its proper divisors (1).

103202009 is an equidigital number, since it uses as much as digits as its factorization.

103202009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 103202009 is about 10158.8389592512. The cubic root of 103202009 is about 469.0610634816.

The spelling of 103202009 in words is "one hundred three million, two hundred two thousand, nine".