11491532 has 24 divisors (see below), whose sum is σ = 21751296. Its totient is φ = 5280768.

The previous prime is 11491531. The next prime is 11491573. The reversal of 11491532 is 23519411.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (11491531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19628 + ... + 20204.

It is an arithmetic number, because the mean of its divisors is an integer number (906304).

Almost surely, 2^11491532 is an apocalyptic number.

It is an amenable number.

11491532 is a deficient number, since it is larger than the sum of its proper divisors (10259764).

11491532 is a wasteful number, since it uses less digits than its factorization.

11491532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 975 counting only the distinct ones).

The product of its digits is 1080, while the sum is 26.

The square root of 11491532 is about 3389.9162231536. The cubic root of 11491532 is about 225.6624558816.

The spelling of 11491532 in words is "eleven million, four hundred ninety-one thousand, five hundred thirty-two".