103817213 has 2 divisors, whose sum is σ = 103817214. Its totient is φ = 103817212.

The previous prime is 103817201. The next prime is 103817267. The reversal of 103817213 is 312718301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85137529 + 18679684 = 9227^2 + 4322^2 .

It is a cyclic number.

It is not a de Polignac number, because 103817213 - 2⁶ = 103817149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103814213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51908606 + 51908607.

It is an arithmetic number, because the mean of its divisors is an integer number (51908607).

Almost surely, 2^103817213 is an apocalyptic number.

It is an amenable number.

103817213 is a deficient number, since it is larger than the sum of its proper divisors (1).

103817213 is an equidigital number, since it uses as much as digits as its factorization.

103817213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 103817213 is about 10189.0732159505. The cubic root of 103817213 is about 469.9912673796.

The spelling of 103817213 in words is "one hundred three million, eight hundred seventeen thousand, two hundred thirteen".