4158609 has 16 divisors (see below), whose sum is σ = 6824832. Its totient is φ = 2193408.

The previous prime is 4158569. The next prime is 4158611. The reversal of 4158609 is 9068514.

It is not a de Polignac number, because 4158609 - 2¹¹ = 4156561 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4158609.

It is not an unprimeable number, because it can be changed into a prime (4158109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7344 + ... + 7889.

It is an arithmetic number, because the mean of its divisors is an integer number (426552).

Almost surely, 2^4158609 is an apocalyptic number.

It is an amenable number.

4158609 is a deficient number, since it is larger than the sum of its proper divisors (2666223).

4158609 is a wasteful number, since it uses less digits than its factorization.

4158609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 4158609 is about 2039.2667799972. The cubic root of 4158609 is about 160.8111026095.

It can be divided in two parts, 4 and 158609, that multiplied together give a palindrome (634436).

The spelling of 4158609 in words is "four million, one hundred fifty-eight thousand, six hundred nine".