1165385 has 8 divisors (see below), whose sum is σ = 1506120. Its totient is φ = 860544.

The previous prime is 1165379. The next prime is 1165397. The reversal of 1165385 is 5835611.

It can be written as a sum of positive squares in 4 ways, for example, as 26896 + 1138489 = 164^2 + 1067^2 .

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 1165385 - 2¹² = 1161289 is a prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8900 + ... + 9029.

It is an arithmetic number, because the mean of its divisors is an integer number (188265).

2^1165385 is an apocalyptic number.

It is an amenable number.

1165385 is a deficient number, since it is larger than the sum of its proper divisors (340735).

1165385 is a wasteful number, since it uses less digits than its factorization.

1165385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17947.

The product of its digits is 3600, while the sum is 29.

The square root of 1165385 is about 1079.5299903199. The cubic root of 1165385 is about 105.2340959903.

The spelling of 1165385 in words is "one million, one hundred sixty-five thousand, three hundred eighty-five".