1166071 has 4 divisors (see below), whose sum is σ = 1174600. Its totient is φ = 1157544.

The previous prime is 1166057. The next prime is 1166083. The reversal of 1166071 is 1706611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1706611 = 197 ⋅8663.

It is a cyclic number.

It is not a de Polignac number, because 1166071 - 2⁷ = 1165943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166021) 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 3 ways as a sum of consecutive naturals, for example, 4056 + ... + 4333.

It is an arithmetic number, because the mean of its divisors is an integer number (293650).

2^1166071 is an apocalyptic number.

1166071 is a deficient number, since it is larger than the sum of its proper divisors (8529).

1166071 is an equidigital number, since it uses as much as digits as its factorization.

1166071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8528.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1166071 is about 1079.8476744430. The cubic root of 1166071 is about 105.2547405067.

The spelling of 1166071 in words is "one million, one hundred sixty-six thousand, seventy-one".