4125109 has 4 divisors (see below), whose sum is σ = 4342240. Its totient is φ = 3907980.

The previous prime is 4125097. The next prime is 4125113. The reversal of 4125109 is 9015214.

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.

It is a cyclic number.

It is not a de Polignac number, because 4125109 - 2⁹ = 4124597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4125109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4129109) 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, 108537 + ... + 108574.

It is an arithmetic number, because the mean of its divisors is an integer number (1085560).

Almost surely, 2^4125109 is an apocalyptic number.

It is an amenable number.

4125109 is a deficient number, since it is larger than the sum of its proper divisors (217131).

4125109 is a wasteful number, since it uses less digits than its factorization.

4125109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217130.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 4125109 is about 2031.0364349268. The cubic root of 4125109 is about 160.3781290984.

The spelling of 4125109 in words is "four million, one hundred twenty-five thousand, one hundred nine".