3845143 has 2 divisors, whose sum is σ = 3845144. Its totient is φ = 3845142.

The previous prime is 3845123. The next prime is 3845159. The reversal of 3845143 is 3415483.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3845143 is a prime.

3845143 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3845113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922571 + 1922572.

It is an arithmetic number, because the mean of its divisors is an integer number (1922572).

Almost surely, 2^3845143 is an apocalyptic number.

3845143 is a deficient number, since it is larger than the sum of its proper divisors (1).

3845143 is an equidigital number, since it uses as much as digits as its factorization.

3845143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 28.

The square root of 3845143 is about 1960.9036182332. The cubic root of 3845143 is about 156.6645847518.

Subtracting from 3845143 its product of digits (5760), we obtain a palindrome (3839383).

The spelling of 3845143 in words is "three million, eight hundred forty-five thousand, one hundred forty-three".