11965512 has 32 divisors (see below), whose sum is σ = 32215680. Its totient is φ = 3681600.

The previous prime is 11965507. The next prime is 11965517. The reversal of 11965512 is 21556911.

It is an interprime number because it is at equal distance from previous prime (11965507) and next prime (11965517).

It is a self number, because there is not a number n which added to its sum of digits gives 11965512.

It is not an unprimeable number, because it can be changed into a prime (11965517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18864 + ... + 19487.

It is an arithmetic number, because the mean of its divisors is an integer number (1006740).

Almost surely, 2^11965512 is an apocalyptic number.

11965512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11965512 is an abundant number, since it is smaller than the sum of its proper divisors (20250168).

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

11965512 is a wasteful number, since it uses less digits than its factorization.

11965512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38373 (or 38369 counting only the distinct ones).

The product of its digits is 2700, while the sum is 30.

The square root of 11965512 is about 3459.1201193367. The cubic root of 11965512 is about 228.7233108102.

The spelling of 11965512 in words is "eleven million, nine hundred sixty-five thousand, five hundred twelve".