2823131 has 4 divisors (see below), whose sum is σ = 2828064. Its totient is φ = 2818200.

The previous prime is 2823113. The next prime is 2823133. The reversal of 2823131 is 1313282.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2823131 is a prime.

It is a super-2 number, since 2×2823131² = 15940137286322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2823133) 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 3 ways as a sum of consecutive naturals, for example, 1475 + ... + 2796.

It is an arithmetic number, because the mean of its divisors is an integer number (707016).

2^2823131 is an apocalyptic number.

2823131 is a deficient number, since it is larger than the sum of its proper divisors (4933).

2823131 is an equidigital number, since it uses as much as digits as its factorization.

2823131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932.

The product of its digits is 288, while the sum is 20.

The square root of 2823131 is about 1680.2175454387. The cubic root of 2823131 is about 141.3330323408. Note that the first 3 decimals are identical.

The spelling of 2823131 in words is "two million, eight hundred twenty-three thousand, one hundred thirty-one".