3126943 has 4 divisors (see below), whose sum is σ = 3131208. Its totient is φ = 3122680.

The previous prime is 3126901. The next prime is 3126961. The reversal of 3126943 is 3496213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3496213 = 7 ⋅499459.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3126943 is a prime.

It is a Duffinian number.

3126943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3126973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721 + ... + 2602.

It is an arithmetic number, because the mean of its divisors is an integer number (782802).

Almost surely, 2^3126943 is an apocalyptic number.

3126943 is a deficient number, since it is larger than the sum of its proper divisors (4265).

3126943 is an equidigital number, since it uses as much as digits as its factorization.

3126943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264.

The product of its digits is 3888, while the sum is 28.

The square root of 3126943 is about 1768.3164309591. The cubic root of 3126943 is about 146.2311812541.

The spelling of 3126943 in words is "three million, one hundred twenty-six thousand, nine hundred forty-three".