5143221 has 12 divisors (see below), whose sum is σ = 7513740. Its totient is φ = 3389760.

The previous prime is 5143217. The next prime is 5143249. The reversal of 5143221 is 1223415.

It can be written as a sum of positive squares in 2 ways, for example, as 1199025 + 3944196 = 1095^2 + 1986^2 .

It is not a de Polignac number, because 5143221 - 2² = 5143217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5143194 and 5143203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5143291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2410 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (626145).

Almost surely, 2^5143221 is an apocalyptic number.

It is an amenable number.

5143221 is a deficient number, since it is larger than the sum of its proper divisors (2370519).

5143221 is a wasteful number, since it uses less digits than its factorization.

5143221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516 (or 6513 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 5143221 is about 2267.8670595959. The cubic root of 5143221 is about 172.6149454432.

Adding to 5143221 its reverse (1223415), we get a palindrome (6366636).

The spelling of 5143221 in words is "five million, one hundred forty-three thousand, two hundred twenty-one".