11491653 has 8 divisors (see below), whose sum is σ = 15400000. Its totient is φ = 7622208.

The previous prime is 11491633. The next prime is 11491661. The reversal of 11491653 is 35619411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11491653 - 2⁸ = 11491397 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 11491653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11491633) 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, 9028 + ... + 10221.

It is an arithmetic number, because the mean of its divisors is an integer number (1925000).

Almost surely, 2^11491653 is an apocalyptic number.

It is an amenable number.

11491653 is a deficient number, since it is larger than the sum of its proper divisors (3908347).

11491653 is a wasteful number, since it uses less digits than its factorization.

11491653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19451.

The product of its digits is 3240, while the sum is 30.

The square root of 11491653 is about 3389.9340701553. The cubic root of 11491653 is about 225.6632479159.

The spelling of 11491653 in words is "eleven million, four hundred ninety-one thousand, six hundred fifty-three".