4124209 has 4 divisors (see below), whose sum is σ = 4257280. Its totient is φ = 3991140.

The previous prime is 4124207. The next prime is 4124213. The reversal of 4124209 is 9024214.

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: 9024214 = 2 ⋅4512107.

It is a cyclic number.

It is not a de Polignac number, because 4124209 - 2¹ = 4124207 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 4124209.

It is not an unprimeable number, because it can be changed into a prime (4124207) 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, 66489 + ... + 66550.

It is an arithmetic number, because the mean of its divisors is an integer number (1064320).

Almost surely, 2^4124209 is an apocalyptic number.

It is an amenable number.

4124209 is a deficient number, since it is larger than the sum of its proper divisors (133071).

4124209 is a wasteful number, since it uses less digits than its factorization.

4124209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133070.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 4124209 is about 2030.8148610841. The cubic root of 4124209 is about 160.3664646944.

The spelling of 4124209 in words is "four million, one hundred twenty-four thousand, two hundred nine".