11532661 has 4 divisors (see below), whose sum is σ = 13180192. Its totient is φ = 9885132.

The previous prime is 11532659. The next prime is 11532679. The reversal of 11532661 is 16623511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11532661 - 2¹ = 11532659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11532611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823755 + ... + 823768.

It is an arithmetic number, because the mean of its divisors is an integer number (3295048).

Almost surely, 2^11532661 is an apocalyptic number.

It is an amenable number.

11532661 is a deficient number, since it is larger than the sum of its proper divisors (1647531).

11532661 is an equidigital number, since it uses as much as digits as its factorization.

11532661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647530.

The product of its digits is 1080, while the sum is 25.

The square root of 11532661 is about 3395.9771789575. The cubic root of 11532661 is about 225.9313559244.

The spelling of 11532661 in words is "eleven million, five hundred thirty-two thousand, six hundred sixty-one".