1163385 has 24 divisors (see below), whose sum is σ = 2044224. Its totient is φ = 612000.

The previous prime is 1163353. The next prime is 1163417. The reversal of 1163385 is 5833611.

It is an interprime number because it is at equal distance from previous prime (1163353) and next prime (1163417).

It is not a de Polignac number, because 1163385 - 2⁵ = 1163353 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4510 + ... + 4760.

It is an arithmetic number, because the mean of its divisors is an integer number (85176).

2^1163385 is an apocalyptic number.

1163385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1163385 is a deficient number, since it is larger than the sum of its proper divisors (880839).

1163385 is a wasteful number, since it uses less digits than its factorization.

1163385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 362 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1163385 is about 1078.6032634848. The cubic root of 1163385 is about 105.1738616166.

Adding to 1163385 its reverse (5833611), we get a palindrome (6996996).

The spelling of 1163385 in words is "one million, one hundred sixty-three thousand, three hundred eighty-five".