11865532 has 12 divisors (see below), whose sum is σ = 23731120. Its totient is φ = 5085216.

The previous prime is 11865521. The next prime is 11865533. The reversal of 11865532 is 23556811.

11865532 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 11865494 and 11865503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11865533) 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 3 ways as a sum of consecutive naturals, for example, 211857 + ... + 211912.

Almost surely, 2^11865532 is an apocalyptic number.

It is an amenable number.

11865532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11865532 is a wasteful number, since it uses less digits than its factorization.

11865532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423780 (or 423778 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 11865532 is about 3444.6381522592. The cubic root of 11865532 is about 228.0844818762.

The spelling of 11865532 in words is "eleven million, eight hundred sixty-five thousand, five hundred thirty-two".