5400221 has 2 divisors, whose sum is σ = 5400222. Its totient is φ = 5400220.

The previous prime is 5400209. The next prime is 5400257. The reversal of 5400221 is 1220045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4468996 + 931225 = 2114^2 + 965^2 .

It is a cyclic number.

It is not a de Polignac number, because 5400221 - 2¹⁰ = 5399197 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5400196 and 5400205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5400121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2700110 + 2700111.

It is an arithmetic number, because the mean of its divisors is an integer number (2700111).

Almost surely, 2^5400221 is an apocalyptic number.

It is an amenable number.

5400221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5400221 is an equidigital number, since it uses as much as digits as its factorization.

5400221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 5400221 is about 2323.8375588668. The cubic root of 5400221 is about 175.4434576228.

Adding to 5400221 its reverse (1220045), we get a palindrome (6620266).

The spelling of 5400221 in words is "five million, four hundred thousand, two hundred twenty-one".