103197217 has 2 divisors, whose sum is σ = 103197218. Its totient is φ = 103197216.

The previous prime is 103197209. The next prime is 103197257. The reversal of 103197217 is 712791301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53056656 + 50140561 = 7284^2 + 7081^2 .

It is a cyclic number.

It is not a de Polignac number, because 103197217 - 2³ = 103197209 is a prime.

It is not a weakly prime, because it can be changed into another prime (103197257) 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 as a sum of consecutive naturals, namely, 51598608 + 51598609.

It is an arithmetic number, because the mean of its divisors is an integer number (51598609).

Almost surely, 2^103197217 is an apocalyptic number.

It is an amenable number.

103197217 is a deficient number, since it is larger than the sum of its proper divisors (1).

103197217 is an equidigital number, since it uses as much as digits as its factorization.

103197217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 103197217 is about 10158.6031027893. The cubic root of 103197217 is about 469.0538033664.

The spelling of 103197217 in words is "one hundred three million, one hundred ninety-seven thousand, two hundred seventeen".