1217171 has 2 divisors, whose sum is σ = 1217172. Its totient is φ = 1217170.

The previous prime is 1217147. The next prime is 1217179. The reversal of 1217171 is 1717121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1217171 - 2⁶ = 1217107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1217179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608585 + 608586.

It is an arithmetic number, because the mean of its divisors is an integer number (608586).

2^1217171 is an apocalyptic number.

1217171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1217171 is an equidigital number, since it uses as much as digits as its factorization.

1217171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98, while the sum is 20.

The square root of 1217171 is about 1103.2547303320. The cubic root of 1217171 is about 106.7703169998.

The spelling of 1217171 in words is "one million, two hundred seventeen thousand, one hundred seventy-one".