281460481 has 2 divisors, whose sum is σ = 281460482. Its totient is φ = 281460480.

The previous prime is 281460469. The next prime is 281460511. The reversal of 281460481 is 184064182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225450225 + 56010256 = 15015^2 + 7484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-281460481 is a prime.

It is a super-2 number, since 2×281460481² = 158440004729502722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (281460461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140730240 + 140730241.

It is an arithmetic number, because the mean of its divisors is an integer number (140730241).

Almost surely, 2^281460481 is an apocalyptic number.

It is an amenable number.

281460481 is a deficient number, since it is larger than the sum of its proper divisors (1).

281460481 is an equidigital number, since it uses as much as digits as its factorization.

281460481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 281460481 is about 16776.7839885957. The cubic root of 281460481 is about 655.3487496547.

The spelling of 281460481 in words is "two hundred eighty-one million, four hundred sixty thousand, four hundred eighty-one".