4145843 has 4 divisors (see below), whose sum is σ = 4464768. Its totient is φ = 3826920.

The previous prime is 4145839. The next prime is 4145849. The reversal of 4145843 is 3485414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3485414 = 2 ⋅1742707.

It is a cyclic number.

It is not a de Polignac number, because 4145843 - 2² = 4145839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4145849) 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 3 ways as a sum of consecutive naturals, for example, 159443 + ... + 159468.

It is an arithmetic number, because the mean of its divisors is an integer number (1116192).

Almost surely, 2^4145843 is an apocalyptic number.

4145843 is a deficient number, since it is larger than the sum of its proper divisors (318925).

4145843 is a wasteful number, since it uses less digits than its factorization.

4145843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318924.

The product of its digits is 7680, while the sum is 29.

The square root of 4145843 is about 2036.1343275924. The cubic root of 4145843 is about 160.6463825642.

The spelling of 4145843 in words is "four million, one hundred forty-five thousand, eight hundred forty-three".