1087165 has 8 divisors (see below), whose sum is σ = 1317888. Its totient is φ = 860880.

The previous prime is 1087159. The next prime is 1087231. The reversal of 1087165 is 5617801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1087165 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 541 + ... + 1570.

It is an arithmetic number, because the mean of its divisors is an integer number (164736).

2^1087165 is an apocalyptic number.

It is an amenable number.

1087165 is a deficient number, since it is larger than the sum of its proper divisors (230723).

1087165 is a wasteful number, since it uses less digits than its factorization.

1087165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1087165 is about 1042.6720481532. The cubic root of 1087165 is about 102.8249453712.

The spelling of 1087165 in words is "one million, eighty-seven thousand, one hundred sixty-five".