12012715 has 32 divisors (see below), whose sum is σ = 17309376. Its totient is φ = 7887360.

The previous prime is 12012677. The next prime is 12012743. The reversal of 12012715 is 51721021.

It is not a de Polignac number, because 12012715 - 2¹¹ = 12010667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12012692 and 12012701.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37737 + ... + 38053.

It is an arithmetic number, because the mean of its divisors is an integer number (540918).

Almost surely, 2^12012715 is an apocalyptic number.

12012715 is a deficient number, since it is larger than the sum of its proper divisors (5296661).

12012715 is a wasteful number, since it uses less digits than its factorization.

12012715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 12012715 is about 3465.9363814127. The cubic root of 12012715 is about 229.0236813099.

Adding to 12012715 its reverse (51721021), we get a palindrome (63733736).

It can be divided in two parts, 1201 and 2715, that added together give a triangular number (3916 = T₈₈).

The spelling of 12012715 in words is "twelve million, twelve thousand, seven hundred fifteen".