1166187 has 8 divisors (see below), whose sum is σ = 1696320. Its totient is φ = 706760.

The previous prime is 1166153. The next prime is 1166213. The reversal of 1166187 is 7816611.

It is a happy number.

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 1166187 - 2¹⁴ = 1149803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17637 + ... + 17702.

It is an arithmetic number, because the mean of its divisors is an integer number (212040).

2^1166187 is an apocalyptic number.

1166187 is a deficient number, since it is larger than the sum of its proper divisors (530133).

1166187 is a wasteful number, since it uses less digits than its factorization.

1166187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35353.

The product of its digits is 2016, while the sum is 30.

The square root of 1166187 is about 1079.9013843866. The cubic root of 1166187 is about 105.2582306159.

The spelling of 1166187 in words is "one million, one hundred sixty-six thousand, one hundred eighty-seven".