11527661 has 8 divisors (see below), whose sum is σ = 12165600. Its totient is φ = 10892880.

The previous prime is 11527651. The next prime is 11527667. The reversal of 11527661 is 16672511.

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

It is a cyclic number.

It is not a de Polignac number, because 11527661 - 2¹⁴ = 11511277 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 (11527667) 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 7 ways as a sum of consecutive naturals, for example, 13631 + ... + 14451.

It is an arithmetic number, because the mean of its divisors is an integer number (1520700).

Almost surely, 2^11527661 is an apocalyptic number.

It is an amenable number.

11527661 is a deficient number, since it is larger than the sum of its proper divisors (637939).

11527661 is an equidigital number, since it uses as much as digits as its factorization.

11527661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579.

The product of its digits is 2520, while the sum is 29.

The square root of 11527661 is about 3395.2409340134. The cubic root of 11527661 is about 225.8987002614.

The spelling of 11527661 in words is "eleven million, five hundred twenty-seven thousand, six hundred sixty-one".