4143609 has 24 divisors (see below), whose sum is σ = 6360480. Its totient is φ = 2665656.

The previous prime is 4143599. The next prime is 4143613. The reversal of 4143609 is 9063414.

It is not a de Polignac number, because 4143609 - 2⁸ = 4143353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4143109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49882 + ... + 49964.

It is an arithmetic number, because the mean of its divisors is an integer number (265020).

Almost surely, 2^4143609 is an apocalyptic number.

It is an amenable number.

4143609 is a deficient number, since it is larger than the sum of its proper divisors (2216871).

4143609 is an equidigital number, since it uses as much as digits as its factorization.

4143609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 4143609 is about 2035.5856651097. The cubic root of 4143609 is about 160.6175224506.

The spelling of 4143609 in words is "four million, one hundred forty-three thousand, six hundred nine".