280271087 has 2 divisors, whose sum is σ = 280271088. Its totient is φ = 280271086.

The previous prime is 280271053. The next prime is 280271141. The reversal of 280271087 is 780172082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 280271087 - 2¹⁰ = 280270063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280271287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140135543 + 140135544.

It is an arithmetic number, because the mean of its divisors is an integer number (140135544).

Almost surely, 2^280271087 is an apocalyptic number.

280271087 is a deficient number, since it is larger than the sum of its proper divisors (1).

280271087 is an equidigital number, since it uses as much as digits as its factorization.

280271087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 280271087 is about 16741.2988444744. The cubic root of 280271087 is about 654.4243233554.

The spelling of 280271087 in words is "two hundred eighty million, two hundred seventy-one thousand, eighty-seven".