2205481 has 2 divisors, whose sum is σ = 2205482. Its totient is φ = 2205480.

The previous prime is 2205451. The next prime is 2205487. The reversal of 2205481 is 1845022.

2205481 is nontrivially palindromic in base 9.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 256 = 1485^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 2205481 - 2⁵ = 2205449 is a prime.

It is a super-2 number, since 2×2205481² = 9728292882722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2205487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102740 + 1102741.

It is an arithmetic number, because the mean of its divisors is an integer number (1102741).

2^2205481 is an apocalyptic number.

It is an amenable number.

2205481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205481 is an equidigital number, since it uses as much as digits as its factorization.

2205481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2205481 is about 1485.0861927848. The cubic root of 2205481 is about 130.1670633211.

The spelling of 2205481 in words is "two million, two hundred five thousand, four hundred eighty-one".