3812143 has 4 divisors (see below), whose sum is σ = 3819088. Its totient is φ = 3805200.

The previous prime is 3812129. The next prime is 3812153. The reversal of 3812143 is 3412183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3412183 = 281 ⋅12143.

It is a cyclic number.

It is not a de Polignac number, because 3812143 - 2⁵ = 3812111 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3812153) 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, 2571 + ... + 3772.

It is an arithmetic number, because the mean of its divisors is an integer number (954772).

Almost surely, 2^3812143 is an apocalyptic number.

3812143 is a deficient number, since it is larger than the sum of its proper divisors (6945).

3812143 is an equidigital number, since it uses as much as digits as its factorization.

3812143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944.

The product of its digits is 576, while the sum is 22.

The square root of 3812143 is about 1952.4709985042. The cubic root of 3812143 is about 156.2151179733.

The spelling of 3812143 in words is "three million, eight hundred twelve thousand, one hundred forty-three".