1163005 has 8 divisors (see below), whose sum is σ = 1405152. Its totient is φ = 924048.

The previous prime is 1163003. The next prime is 1163011. The reversal of 1163005 is 5003611.

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 1163005 - 2¹ = 1163003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1163005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102 + ... + 1528.

It is an arithmetic number, because the mean of its divisors is an integer number (175644).

2^1163005 is an apocalyptic number.

It is an amenable number.

1163005 is a deficient number, since it is larger than the sum of its proper divisors (242147).

1163005 is a wasteful number, since it uses less digits than its factorization.

1163005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1163005 is about 1078.4270953569. The cubic root of 1163005 is about 105.1624092829.

Adding to 1163005 its reverse (5003611), we get a palindrome (6166616).

Subtracting 1163005 from its reverse (5003611), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 1163005 in words is "one million, one hundred sixty-three thousand, five".