4211281 has 2 divisors, whose sum is σ = 4211282. Its totient is φ = 4211280.

The previous prime is 4211279. The next prime is 4211299. The reversal of 4211281 is 1821124.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3671056 + 540225 = 1916^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 4211281 - 2¹ = 4211279 is a prime.

It is a super-2 number, since 2×4211281² = 35469775321922, which contains 22 as substring.

Together with 4211279, it forms a pair of twin primes.

4211281 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4211681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2105640 + 2105641.

It is an arithmetic number, because the mean of its divisors is an integer number (2105641).

Almost surely, 2^4211281 is an apocalyptic number.

It is an amenable number.

4211281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4211281 is an equidigital number, since it uses as much as digits as its factorization.

4211281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128, while the sum is 19.

The square root of 4211281 is about 2052.1405897258. The cubic root of 4211281 is about 161.4871885475.

The spelling of 4211281 in words is "four million, two hundred eleven thousand, two hundred eighty-one".