280065413 has 2 divisors, whose sum is σ = 280065414. Its totient is φ = 280065412.

The previous prime is 280065391. The next prime is 280065431. The reversal of 280065413 is 314560082.

Together with next prime (280065431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150970369 + 129095044 = 12287^2 + 11362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-280065413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280065713) 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, 140032706 + 140032707.

It is an arithmetic number, because the mean of its divisors is an integer number (140032707).

Almost surely, 2^280065413 is an apocalyptic number.

It is an amenable number.

280065413 is a deficient number, since it is larger than the sum of its proper divisors (1).

280065413 is an equidigital number, since it uses as much as digits as its factorization.

280065413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 280065413 is about 16735.1550037638. The cubic root of 280065413 is about 654.2642033711.

The spelling of 280065413 in words is "two hundred eighty million, sixty-five thousand, four hundred thirteen".