12072015 has 12 divisors (see below), whose sum is σ = 20924904. Its totient is φ = 6438384.

The previous prime is 12072013. The next prime is 12072019. The reversal of 12072015 is 51027021.

12072015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12072015 - 2¹ = 12072013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134089 + ... + 134178.

It is an arithmetic number, because the mean of its divisors is an integer number (1743742).

Almost surely, 2^12072015 is an apocalyptic number.

12072015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12072015 is a deficient number, since it is larger than the sum of its proper divisors (8852889).

12072015 is a wasteful number, since it uses less digits than its factorization.

12072015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268278 (or 268275 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 12072015 is about 3474.4805367134. The cubic root of 12072015 is about 229.3999164898.

Adding to 12072015 its reverse (51027021), we get a palindrome (63099036).

The spelling of 12072015 in words is "twelve million, seventy-two thousand, fifteen".