11491263 has 24 divisors (see below), whose sum is σ = 19094400. Its totient is φ = 6523344.

The previous prime is 11491243. The next prime is 11491307. The reversal of 11491263 is 36219411.

It is not a de Polignac number, because 11491263 - 2⁶ = 11491199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11491223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10768 + ... + 11786.

It is an arithmetic number, because the mean of its divisors is an integer number (795600).

Almost surely, 2^11491263 is an apocalyptic number.

11491263 is a deficient number, since it is larger than the sum of its proper divisors (7603137).

11491263 is a wasteful number, since it uses less digits than its factorization.

11491263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211 (or 1208 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 11491263 is about 3389.8765464247. The cubic root of 11491263 is about 225.6606950583.

The spelling of 11491263 in words is "eleven million, four hundred ninety-one thousand, two hundred sixty-three".