1197289 has 2 divisors, whose sum is σ = 1197290. Its totient is φ = 1197288.

The previous prime is 1197281. The next prime is 1197307. The reversal of 1197289 is 9827911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 627264 + 570025 = 792^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197289 - 2³ = 1197281 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1197281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598644 + 598645.

It is an arithmetic number, because the mean of its divisors is an integer number (598645).

2^1197289 is an apocalyptic number.

It is an amenable number.

1197289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197289 is an equidigital number, since it uses as much as digits as its factorization.

1197289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 37.

The square root of 1197289 is about 1094.2070188040. The cubic root of 1197289 is about 106.1857724860.

The spelling of 1197289 in words is "one million, one hundred ninety-seven thousand, two hundred eighty-nine".