103880209 has 2 divisors, whose sum is σ = 103880210. Its totient is φ = 103880208.

The previous prime is 103880207. The next prime is 103880221. The reversal of 103880209 is 902088301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67699984 + 36180225 = 8228^2 + 6015^2 .

It is a cyclic number.

It is not a de Polignac number, because 103880209 - 2¹ = 103880207 is a prime.

Together with 103880207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (103880207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51940104 + 51940105.

It is an arithmetic number, because the mean of its divisors is an integer number (51940105).

Almost surely, 2^103880209 is an apocalyptic number.

It is an amenable number.

103880209 is a deficient number, since it is larger than the sum of its proper divisors (1).

103880209 is an equidigital number, since it uses as much as digits as its factorization.

103880209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 103880209 is about 10192.1640979725. The cubic root of 103880209 is about 470.0863112953.

The spelling of 103880209 in words is "one hundred three million, eight hundred eighty thousand, two hundred nine".