3145843 has 4 divisors (see below), whose sum is σ = 3154320. Its totient is φ = 3137368.

The previous prime is 3145841. The next prime is 3145873. The reversal of 3145843 is 3485413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3485413 = 743 ⋅4691.

It is a cyclic number.

It is not a de Polignac number, because 3145843 - 2¹ = 3145841 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3145841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3655 + ... + 4432.

It is an arithmetic number, because the mean of its divisors is an integer number (788580).

Almost surely, 2^3145843 is an apocalyptic number.

3145843 is a deficient number, since it is larger than the sum of its proper divisors (8477).

3145843 is an equidigital number, since it uses as much as digits as its factorization.

3145843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476.

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

The square root of 3145843 is about 1773.6524462250. The cubic root of 3145843 is about 146.5252085358.

The spelling of 3145843 in words is "three million, one hundred forty-five thousand, eight hundred forty-three".