1186216 has 16 divisors (see below), whose sum is σ = 2301300. Its totient is φ = 572544.

The previous prime is 1186181. The next prime is 1186217. The reversal of 1186216 is 6126811.

It can be written as a sum of positive squares in 2 ways, for example, as 1060900 + 125316 = 1030^2 + 354^2 .

It is not an unprimeable number, because it can be changed into a prime (1186217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2325 + ... + 2788.

2^1186216 is an apocalyptic number.

It is an amenable number.

1186216 is a deficient number, since it is larger than the sum of its proper divisors (1115084).

1186216 is a wasteful number, since it uses less digits than its factorization.

1186216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5148 (or 5144 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The square root of 1186216 is about 1089.1354369407. The cubic root of 1186216 is about 105.8574088420.

The spelling of 1186216 in words is "one million, one hundred eighty-six thousand, two hundred sixteen".