1168971217 has 2 divisors, whose sum is σ = 1168971218. Its totient is φ = 1168971216.

The previous prime is 1168971203. The next prime is 1168971299. The reversal of 1168971217 is 7121798611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 886193361 + 282777856 = 29769^2 + 16816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1168971217 is a prime.

It is a super-2 number, since 2×1168971217² = 2732987412348922178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1168971317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 584485608 + 584485609.

It is an arithmetic number, because the mean of its divisors is an integer number (584485609).

Almost surely, 2^1168971217 is an apocalyptic number.

It is an amenable number.

1168971217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1168971217 is an equidigital number, since it uses as much as digits as its factorization.

1168971217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 43.

The square root of 1168971217 is about 34190.2210726986. The cubic root of 1168971217 is about 1053.4193041133.

The spelling of 1168971217 in words is "one billion, one hundred sixty-eight million, nine hundred seventy-one thousand, two hundred seventeen".