12072135 has 16 divisors (see below), whose sum is σ = 19516896. Its totient is φ = 6371328.

The previous prime is 12072133. The next prime is 12072139. The reversal of 12072135 is 53127021.

12072135 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 12072135 - 2¹ = 12072133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072131) 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, 2694 + ... + 5603.

It is an arithmetic number, because the mean of its divisors is an integer number (1219806).

Almost surely, 2^12072135 is an apocalyptic number.

12072135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12072135 is a deficient number, since it is larger than the sum of its proper divisors (7444761).

12072135 is an equidigital number, since it uses as much as digits as its factorization.

12072135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8402.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12072135 is about 3474.4978054389. The cubic root of 12072135 is about 229.4006765921.

Adding to 12072135 its reverse (53127021), we get a palindrome (65199156).

The spelling of 12072135 in words is "twelve million, seventy-two thousand, one hundred thirty-five".