2146831 has 4 divisors (see below), whose sum is σ = 2150512. Its totient is φ = 2143152.

The previous prime is 2146817. The next prime is 2146847. The reversal of 2146831 is 1386412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2146831 - 2¹¹ = 2144783 is a prime.

It is a super-2 number, since 2×2146831² = 9217766685122, 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 = 2146796 and 2146805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146231) 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, 750 + ... + 2203.

It is an arithmetic number, because the mean of its divisors is an integer number (537628).

2^2146831 is an apocalyptic number.

2146831 is a deficient number, since it is larger than the sum of its proper divisors (3681).

2146831 is an equidigital number, since it uses as much as digits as its factorization.

2146831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680.

The product of its digits is 1152, while the sum is 25.

The square root of 2146831 is about 1465.2068113410. The cubic root of 2146831 is about 129.0028443176.

The spelling of 2146831 in words is "two million, one hundred forty-six thousand, eight hundred thirty-one".