2160831 has 8 divisors (see below), whose sum is σ = 2913840. Its totient is φ = 1424192.

The previous prime is 2160797. The next prime is 2160833. The reversal of 2160831 is 1380612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2160831 - 2¹⁷ = 2029759 is a prime.

It is a super-2 number, since 2×2160831² = 9338381221122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2160798 and 2160807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160833) 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 7 ways as a sum of consecutive naturals, for example, 3780 + ... + 4313.

It is an arithmetic number, because the mean of its divisors is an integer number (364230).

2^2160831 is an apocalyptic number.

2160831 is a deficient number, since it is larger than the sum of its proper divisors (753009).

2160831 is an equidigital number, since it uses as much as digits as its factorization.

2160831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8185.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2160831 is about 1469.9765304249. The cubic root of 2160831 is about 129.2826564545.

The spelling of 2160831 in words is "two million, one hundred sixty thousand, eight hundred thirty-one".