11491163 has 4 divisors (see below), whose sum is σ = 11887440. Its totient is φ = 11094888.

The previous prime is 11491159. The next prime is 11491177. The reversal of 11491163 is 36119411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11491163 - 2² = 11491159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11491153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198095 + ... + 198152.

It is an arithmetic number, because the mean of its divisors is an integer number (2971860).

Almost surely, 2^11491163 is an apocalyptic number.

11491163 is a deficient number, since it is larger than the sum of its proper divisors (396277).

11491163 is an equidigital number, since it uses as much as digits as its factorization.

11491163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396276.

The product of its digits is 648, while the sum is 26.

The square root of 11491163 is about 3389.8617965929. The cubic root of 11491163 is about 225.6600404701.

The spelling of 11491163 in words is "eleven million, four hundred ninety-one thousand, one hundred sixty-three".