11640529 has 8 divisors (see below), whose sum is σ = 12421728. Its totient is φ = 10870080.

The previous prime is 11640527. The next prime is 11640539. The reversal of 11640529 is 92504611.

11640529 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11640529 - 2¹ = 11640527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11640497 and 11640506.

It is not an unprimeable number, because it can be changed into a prime (11640527) 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, 387 + ... + 4840.

It is an arithmetic number, because the mean of its divisors is an integer number (1552716).

Almost surely, 2^11640529 is an apocalyptic number.

It is an amenable number.

11640529 is a deficient number, since it is larger than the sum of its proper divisors (781199).

11640529 is a wasteful number, since it uses less digits than its factorization.

11640529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5375.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 11640529 is about 3411.8219472886. The cubic root of 11640529 is about 226.6335695139.

The spelling of 11640529 in words is "eleven million, six hundred forty thousand, five hundred twenty-nine".