1165086 has 36 divisors (see below), whose sum is σ = 2740608. Its totient is φ = 357552.

The previous prime is 1165081. The next prime is 1165103. The reversal of 1165086 is 6805611.

1165086 is a `hidden beast` number, since 1 + 1 + 650 + 8 + 6 = 666.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2851 + ... + 3233.

It is an arithmetic number, because the mean of its divisors is an integer number (76128).

2^1165086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370304).

1165086 is an abundant number, since it is smaller than the sum of its proper divisors (1575522).

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

1165086 is a wasteful number, since it uses less digits than its factorization.

1165086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1165086 is about 1079.3914952416. The cubic root of 1165086 is about 105.2250953349.

The spelling of 1165086 in words is "one million, one hundred sixty-five thousand, eighty-six".