281080417 has 2 divisors, whose sum is σ = 281080418. Its totient is φ = 281080416.

The previous prime is 281080391. The next prime is 281080427. The reversal of 281080417 is 714080182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280596001 + 484416 = 16751^2 + 696^2 .

It is a cyclic number.

It is not a de Polignac number, because 281080417 - 2²⁷ = 146862689 is a prime.

It is not a weakly prime, because it can be changed into another prime (281080427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140540208 + 140540209.

It is an arithmetic number, because the mean of its divisors is an integer number (140540209).

Almost surely, 2^281080417 is an apocalyptic number.

It is an amenable number.

281080417 is a deficient number, since it is larger than the sum of its proper divisors (1).

281080417 is an equidigital number, since it uses as much as digits as its factorization.

281080417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 281080417 is about 16765.4530806656. The cubic root of 281080417 is about 655.0536381691.

The spelling of 281080417 in words is "two hundred eighty-one million, eighty thousand, four hundred seventeen".