12032145 has 28 divisors (see below), whose sum is σ = 21654516. Its totient is φ = 6415200.

The previous prime is 12032143. The next prime is 12032173. The reversal of 12032145 is 54123021.

12032145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3370896 + 8661249 = 1836^2 + 2943^2 .

It is not a de Polignac number, because 12032145 - 2¹ = 12032143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032143) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1995 + ... + 5295.

Almost surely, 2^12032145 is an apocalyptic number.

12032145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12032145 is a deficient number, since it is larger than the sum of its proper divisors (9622371).

12032145 is an frugal number, since it uses more digits than its factorization.

12032145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324 (or 3309 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12032145 is about 3468.7382432233. The cubic root of 12032145 is about 229.1470931308.

Adding to 12032145 its reverse (54123021), we get a palindrome (66155166).

The spelling of 12032145 in words is "twelve million, thirty-two thousand, one hundred forty-five".