4143445 has 8 divisors (see below), whose sum is σ = 5106744. Its totient is φ = 3225024.

The previous prime is 4143421. The next prime is 4143449. The reversal of 4143445 is 5443414.

It can be written as a sum of positive squares in 4 ways, for example, as 2331729 + 1811716 = 1527^2 + 1346^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4143445 - 2⁵ = 4143413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4143449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11014 + ... + 11383.

It is an arithmetic number, because the mean of its divisors is an integer number (638343).

Almost surely, 2^4143445 is an apocalyptic number.

It is an amenable number.

4143445 is a deficient number, since it is larger than the sum of its proper divisors (963299).

4143445 is a wasteful number, since it uses less digits than its factorization.

4143445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22439.

The product of its digits is 3840, while the sum is 25.

The square root of 4143445 is about 2035.5453814641. The cubic root of 4143445 is about 160.6154033944.

Adding to 4143445 its reverse (5443414), we get a palindrome (9586859).

The spelling of 4143445 in words is "four million, one hundred forty-three thousand, four hundred forty-five".