5143821 has 12 divisors (see below), whose sum is σ = 7041216. Its totient is φ = 3338680.

The previous prime is 5143807. The next prime is 5143837. The reversal of 5143821 is 1283415.

It is not a de Polignac number, because 5143821 - 2⁶ = 5143757 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5143791 and 5143800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5143871) 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 11 ways as a sum of consecutive naturals, for example, 26836 + ... + 27026.

It is an arithmetic number, because the mean of its divisors is an integer number (586768).

Almost surely, 2^5143821 is an apocalyptic number.

It is an amenable number.

5143821 is a deficient number, since it is larger than the sum of its proper divisors (1897395).

5143821 is an equidigital number, since it uses as much as digits as its factorization.

5143821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 241 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 5143821 is about 2267.9993386242. Note that the first 3 decimals coincide. The cubic root of 5143821 is about 172.6216575108.

The spelling of 5143821 in words is "five million, one hundred forty-three thousand, eight hundred twenty-one".