1091163 has 8 divisors (see below), whose sum is σ = 1459728. Its totient is φ = 725024.

The previous prime is 1091161. The next prime is 1091173. The reversal of 1091163 is 3611901.

It is a happy number.

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 1091163 - 2¹ = 1091161 is a prime.

1091163 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1091161) 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, 1345 + ... + 1997.

It is an arithmetic number, because the mean of its divisors is an integer number (182466).

2^1091163 is an apocalyptic number.

1091163 is a deficient number, since it is larger than the sum of its proper divisors (368565).

1091163 is an equidigital number, since it uses as much as digits as its factorization.

1091163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1091163 is about 1044.5874783856. The cubic root of 1091163 is about 102.9508358699.

The spelling of 1091163 in words is "one million, ninety-one thousand, one hundred sixty-three".