12032109 has 6 divisors (see below), whose sum is σ = 17379726. Its totient is φ = 8021400.

The previous prime is 12032089. The next prime is 12032143. The reversal of 12032109 is 90123021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11923209 + 108900 = 3453^2 + 330^2 .

It is not a de Polignac number, because 12032109 - 2⁵ = 12032077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12032091 and 12032100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 668442 + ... + 668459.

It is an arithmetic number, because the mean of its divisors is an integer number (2896621).

Almost surely, 2^12032109 is an apocalyptic number.

It is an amenable number.

12032109 is a deficient number, since it is larger than the sum of its proper divisors (5347617).

12032109 is a wasteful number, since it uses less digits than its factorization.

12032109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336907 (or 1336904 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 12032109 is about 3468.7330540127. The cubic root of 12032109 is about 229.1468645957.

The spelling of 12032109 in words is "twelve million, thirty-two thousand, one hundred nine".