2126831 has 8 divisors (see below), whose sum is σ = 2514720. Its totient is φ = 1759968.

The previous prime is 2126827. The next prime is 2126849. The reversal of 2126831 is 1386212.

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

It is not a de Polignac number, because 2126831 - 2² = 2126827 is a prime.

It is a super-2 number, since 2×2126831² = 9046820205122, 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 = 2126797 and 2126806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126801) 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, 5036 + ... + 5441.

It is an arithmetic number, because the mean of its divisors is an integer number (314340).

2^2126831 is an apocalyptic number.

2126831 is a deficient number, since it is larger than the sum of its proper divisors (387889).

2126831 is a wasteful number, since it uses less digits than its factorization.

2126831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10513.

The product of its digits is 576, while the sum is 23.

The square root of 2126831 is about 1458.3658663038. The cubic root of 2126831 is about 128.6009945527.

The spelling of 2126831 in words is "two million, one hundred twenty-six thousand, eight hundred thirty-one".