1171289 has 8 divisors (see below), whose sum is σ = 1348800. Its totient is φ = 996336.

The previous prime is 1171267. The next prime is 1171301. The reversal of 1171289 is 9821711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1171289 - 2⁸ = 1171033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1171259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482 + ... + 1604.

It is an arithmetic number, because the mean of its divisors is an integer number (168600).

2^1171289 is an apocalyptic number.

It is an amenable number.

1171289 is a deficient number, since it is larger than the sum of its proper divisors (177511).

1171289 is a wasteful number, since it uses less digits than its factorization.

1171289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279.

The product of its digits is 1008, while the sum is 29.

The square root of 1171289 is about 1082.2610590796. The cubic root of 1171289 is about 105.4115068445.

The spelling of 1171289 in words is "one million, one hundred seventy-one thousand, two hundred eighty-nine".