12015047 has 16 divisors (see below), whose sum is σ = 13740192. Its totient is φ = 10408320.

The previous prime is 12015041. The next prime is 12015067. The reversal of 12015047 is 74051021.

It is a cyclic number.

It is not a de Polignac number, because 12015047 - 2¹² = 12010951 is a prime.

It is a super-2 number, since 2×12015047² = 288722708824418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12015041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21293 + ... + 21849.

It is an arithmetic number, because the mean of its divisors is an integer number (858762).

Almost surely, 2^12015047 is an apocalyptic number.

12015047 is a deficient number, since it is larger than the sum of its proper divisors (1725145).

12015047 is a wasteful number, since it uses less digits than its factorization.

12015047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12015047 is about 3466.2727821105. The cubic root of 12015047 is about 229.0385002932.

Adding to 12015047 its reverse (74051021), we get a palindrome (86066068).

The spelling of 12015047 in words is "twelve million, fifteen thousand, forty-seven".