2143031 has 12 divisors (see below), whose sum is σ = 2394000. Its totient is φ = 1916640.

The previous prime is 2143027. The next prime is 2143039. The reversal of 2143031 is 1303412.

2143031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2143031 - 2² = 2143027 is a prime.

It is a super-2 number, since 2×2143031² = 9185163733922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142997 and 2143015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10670 + ... + 10868.

It is an arithmetic number, because the mean of its divisors is an integer number (199500).

2^2143031 is an apocalyptic number.

2143031 is a deficient number, since it is larger than the sum of its proper divisors (250969).

2143031 is a wasteful number, since it uses less digits than its factorization.

2143031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2143031 is about 1463.9094917378. The cubic root of 2143031 is about 128.9266855009.

Adding to 2143031 its reverse (1303412), we get a palindrome (3446443).

The spelling of 2143031 in words is "two million, one hundred forty-three thousand, thirty-one".