12038109 has 4 divisors (see below), whose sum is σ = 16050816. Its totient is φ = 8025404.

The previous prime is 12038101. The next prime is 12038113. The reversal of 12038109 is 90183021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90183021 = 3 ⋅30061007.

It is a cyclic number.

It is not a de Polignac number, because 12038109 - 2³ = 12038101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12038101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2006349 + ... + 2006354.

It is an arithmetic number, because the mean of its divisors is an integer number (4012704).

Almost surely, 2^12038109 is an apocalyptic number.

It is an amenable number.

12038109 is a deficient number, since it is larger than the sum of its proper divisors (4012707).

12038109 is an equidigital number, since it uses as much as digits as its factorization.

12038109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012706.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 12038109 is about 3469.5978153094. The cubic root of 12038109 is about 229.1849474930.

The spelling of 12038109 in words is "twelve million, thirty-eight thousand, one hundred nine".