12002564 has 12 divisors (see below), whose sum is σ = 24005184. Its totient is φ = 5143944.

The previous prime is 12002519. The next prime is 12002579. The reversal of 12002564 is 46520021.

It is a happy number.

12002564 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214304 + ... + 214359.

It is an arithmetic number, because the mean of its divisors is an integer number (2000432).

Almost surely, 2^12002564 is an apocalyptic number.

12002564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12002564 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.

12002564 is a wasteful number, since it uses less digits than its factorization.

12002564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428674 (or 428672 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 12002564 is about 3464.4716768939. The cubic root of 12002564 is about 228.9591531679.

Adding to 12002564 its reverse (46520021), we get a palindrome (58522585).

The spelling of 12002564 in words is "twelve million, two thousand, five hundred sixty-four".