4123109 has 4 divisors (see below), whose sum is σ = 4147116. Its totient is φ = 4099104.

The previous prime is 4123099. The next prime is 4123111. The reversal of 4123109 is 9013214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3694084 + 429025 = 1922^2 + 655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4123109 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4123199) 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, 11744 + ... + 12089.

It is an arithmetic number, because the mean of its divisors is an integer number (1036779).

Almost surely, 2^4123109 is an apocalyptic number.

It is an amenable number.

4123109 is a deficient number, since it is larger than the sum of its proper divisors (24007).

4123109 is a wasteful number, since it uses less digits than its factorization.

4123109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24006.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 4123109 is about 2030.5440157751. The cubic root of 4123109 is about 160.3522058957.

The spelling of 4123109 in words is "four million, one hundred twenty-three thousand, one hundred nine".