4445281 has 2 divisors, whose sum is σ = 4445282. Its totient is φ = 4445280.

The previous prime is 4445267. The next prime is 4445303. The reversal of 4445281 is 1825444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2944656 + 1500625 = 1716^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 4445281 - 2⁷ = 4445153 is a prime.

It is a super-2 number, since 2×4445281² = 39521046337922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4445201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222640 + 2222641.

It is an arithmetic number, because the mean of its divisors is an integer number (2222641).

Almost surely, 2^4445281 is an apocalyptic number.

It is an amenable number.

4445281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4445281 is an equidigital number, since it uses as much as digits as its factorization.

4445281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 28.

The square root of 4445281 is about 2108.3835040144. The cubic root of 4445281 is about 164.4244532586.

The spelling of 4445281 in words is "four million, four hundred forty-five thousand, two hundred eighty-one".