12001516 has 6 divisors (see below), whose sum is σ = 21002660. Its totient is φ = 6000756.

The previous prime is 12001511. The next prime is 12001523. The reversal of 12001516 is 61510021.

It is a happy number.

12001516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12001516.

It is not an unprimeable number, because it can be changed into a prime (12001511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500186 + ... + 1500193.

Almost surely, 2^12001516 is an apocalyptic number.

It is an amenable number.

12001516 is a deficient number, since it is larger than the sum of its proper divisors (9001144).

12001516 is a wasteful number, since it uses less digits than its factorization.

12001516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000383 (or 3000381 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 12001516 is about 3464.3204239793. The cubic root of 12001516 is about 228.9524891424.

Adding to 12001516 its reverse (61510021), we get a palindrome (73511537).

The spelling of 12001516 in words is "twelve million, one thousand, five hundred sixteen".