1185666 has 16 divisors (see below), whose sum is σ = 2404704. Its totient is φ = 389664.

The previous prime is 1185661. The next prime is 1185671. The reversal of 1185666 is 6665811.

It is an interprime number because it is at equal distance from previous prime (1185661) and next prime (1185671).

It is not an unprimeable number, because it can be changed into a prime (1185661) 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, 916 + ... + 1791.

It is an arithmetic number, because the mean of its divisors is an integer number (150294).

2^1185666 is an apocalyptic number.

1185666 is an abundant number, since it is smaller than the sum of its proper divisors (1219038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1185666 is a wasteful number, since it uses less digits than its factorization.

1185666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785.

The product of its digits is 8640, while the sum is 33.

The square root of 1185666 is about 1088.8829138158. The cubic root of 1185666 is about 105.8410457245.

The spelling of 1185666 in words is "one million, one hundred eighty-five thousand, six hundred sixty-six".